How to spot malspam like a fake DocuSign email

What is DocuSign email virus?

It is another spam email campaign used to proliferate a high-risk trojan called TrickBot. Developers send thousands of emails stating that users have received a "secure" document and must review and sign it. This is a scam - the opened MS Word document will stealthily download and install the TrickBot trojan.

DocuSign malspam overview

The email essentially states that users must electronically sign documents, however, this is a simple attempt to trick them into opening malicious documents that download and install malware. Note that the email contains the logo of DocuSign, a legitimate company. This is very common amongst cyber criminals.

They register email addresses and domains by including names of popular companies and governmental agencies. This is done to give the impression of legitimacy - it is much simpler to trick users into opening documents received from familiar names.

TrickBot is high-risk trojan designed to gather personal information. Immediately after infiltration, it hijacks browsers and modifies visited website content so that entered logins/passwords are saved on a remote server controlled by cyber criminals.

The criminals can then gain access to users' personal accounts (social networks, emails, banks, etc.) Therefore, the presence of a malware such as TrickBot might lead to serious privacy issues and significant financial loss.

If you have recently opened emails distributed via the "DocuSign Email Virus" spam campaign, you should immediately scan the system with a reputable anti-virus/anti-spyware suite and eliminate all threats.

Examples of Trojans

There are a number of trojans similar to TrickBot including, for example, Adwind, Emotet, and FormBook. Most are distributed using spam email campaigns. In addition, these viruses typically have identical behavior: they collect information.

In some cases, however, trojans also proliferate other high-risk viruses, such as ransomware. In any case, these viruses pose a significant threat to your privacy and Internet browsing safety.

How did DocuSign Email Virus infect my computer?

As mentioned above, "DocuSign Email Virus" distributes a malicious Microsoft Word document that, once opened, asks users to enable macro commands. By complying, users grant permission for macro command within the document to run commands that stealthily download and install malware. This malware distribution method does, however, have a major flaw.

The attachment is unable to download malware if it is opened using any software other than MS Word. If the file is opened using another app that is capable of reading .doc format, TrickBot will not be downloaded. In addition, TrickBot targets only Microsoft Windows Operating System and users of other platforms are safe.

How to avoid installation of malware?

To prevent this situation, be very cautious when browsing the Internet. Carefully analyze each email attachment received. Files that seem irrelevant and those received from suspicious/unrecognizable email addresses should never be opened. They should be deleted immediately, without reading. In addition, have a reputable anti-virus/anti-spyware suite installed and running.

More recent versions (2010 and above) of MS Office open newly-downloaded documents in "Protected View" mode. This prevents malicious attachments from downloading and installing viruses. Therefore, using older MS Office versions is risky and not recommended.

The main reasons for computer infections are poor knowledge and careless behavior. The key to safety is caution. If you have already opened the "DocuSign Email Virus" attachment, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

Text presented in the "DocuSign Email Virus" email message:

You have received a secure document to review and sign.
File type: Microsoft Word
File Encryption: 2048 RSA
Do Not Share This Email
The information contained in this message may be confidential and legally privileged. It is intended only for use of the individual named. If you are not the intended recipient, you are hereby notified that the disclosure, copying, distribution, or taking of any action in regards to the contents of this fax – except its direct delivery to the intended recipient – is strictly prohibited. If you have received this fax in error, please notify the sender immediately and destroy this cover sheet along with its contents, and delete from your system, if applicable..
This message was sent to you using the DocuSign Secure Electronic Encryption Service. If you would rather not receive email from this sender you may contact the sender with your request.

Malicious attachment distributed via "DocuSign Email Virus" spam campaign:

Another variant of DocuSign spam email (if potential victims click on "View Document" button - this variant downloads a malicious file invoice_958306.xls - a macros malware that infect computers with trojans):

Text presented in this fake email:

Subject: You received invoice from DocuSign Electronic Service
DocuSign
Review and sign the document.
Dear Receiver,
Please review this invoice
This is an electronically generated invoice.
This message keeps a secure information. Do not share this code with other people.
Other Signing Method
Please visit DocuSign.com, click on 'Access Documents', enter the code: E80BC5C5F4
About DocuSign
Sign invoice in just minutes. It's secure. Whether you're in an office, at home or on-the-go -- Our service provides a professional solution for Digital Transaction Management.
Questions regarding an Invoice?
If you need to modify the document or have concerns about the details in the document, please reach out to the sender directly.
If you cannot see an invoice, please see the Help with Signing page on our support .
This message was sent to you by DocuSign Electronic Signature Service.

Screenshot of a malicious DocuSign-themed MS Excel document ("Bharat1085113_.xls") designed to inject Ursnif (Gozi) malware into the system:

Another malicious Microsoft Word document distributed via DocuSign spam campaign. This document spreads Hancitor trojan:

 Appearance of yet another DocuSign-themed spam email used to spread malware:

Appearance of a DocuSign-themed malicious MS Excel document designed to inject TrickBot malware into the system:

Another example of DocuSign-themed spam email used to promote a phishing website:

Text presented within:

Subject: Completed: Please DocuSign: Disclosure.pdf

You received a document. Review and Sign

REVIEW DOCUMENT

Document pending review for:
-
Please view and confirm pending document. Sign for all documents to be released.
Do Not Share This E.mail
This e.mail contains a l.ink to DocuSign. Please do not share this e.mail, l.ink, or access code with others.
Alternate Signing Method
Visit DocuSign.com, click 'Access Documents', and enter the  code:
55A4D6A585274E07AE23ABDE595F2
About DocuSign
Sign documents electronically in just minutes. It's safe, secure, and legally binding. Whether you're in an office, at home, on-the-go -- or even across the globe -- DocuSign provides a professional trusted answer for Digital Transaction Management™.
Questions about the Document?
If you need to modify the document or have questions about the details in the document, please reach out to the sender by emailing them directly.

If you are having trouble signing the document, please go to the Help with Signing page on our Support Center.
 Get the DocuSign App
This message was sent to you - via DocuSign Electronic Signature Service. If you would rather not receive e.mail from this sender you may contact the sender with your request.

Screenshot of the promoted phishing site:

Yet another example of DocuSign-themed spam email used to spread Agent Tesla malware:

Text presented within:

DocuSign
Your document has been completed.

Hello -

kindly view attachment sent to you on  (16 Jan 2022)

To view document click the link below
 

VIEW DOCUMENT

Yet another example of DocuSign-themed spam email promoting a phishing site:

Text presented within:

Subject: RE: Completed: PO#377 Contract agreement renewal.PDF FYA

FYA,
Completed : PO#377Contract agreement renewal for payment processing.
    
DocuSign

******** document has been completed
VIEW COMPLETED DOCUMENT

********
We have some of your  invoices to settle but they haven't been picked up yet in our system,
Please find below a copy of the contract agreement statement and kindly provide us with the stated invoices to enable us to process  payment.
Thank you

All parties have completed Please DocuSign: 2022_POContract_ 2022_3_25pdf.
Expiry date 28 Mar 2022 do not disregard.

Alternate Signing Method
Move this message to inbox,  click 'View Completed Documents', and enter ******** and Pass

About DocuSign
Sign documents electronically in just minutes. It's safe, secure, and legally binding. Whether you're in an office, at home, on-the-go -- or even across the globe -- DocuSign provides a professional trusted solution for Digital Transaction Management™.

Questions about the Document?
If you need to modify the document or have questions about the details in the document, please reach out to the sender by emailing them directly.

Stop receiving this email
Report this email or read more about  Declining to sign and  Managing notifications.

If you are having trouble signing the document, please visit the  Help with Signing page on our  Support Center.

Download the DocuSign App

This message was sent to you by Vicki Seekford who is using the DocuSign Electronic Signature Service. If you would rather not receive email from this sender you may contact the sender with your request.

--
Thanks for your business!
Tauri Builders Inc.

Regards,

Jean Delacroix M.
Operations Manager
Tauri Builders Inc.
Concrete & Drywall
AB :587.988.9914
BC :604.202.0627

Screenshot of the promoted phishing site:

Another example of DocuSign-themed spam email promoting a phishing site:

Text presented within:

Subject: You - received a signed document for your review and sign

 

DocuSign

You Have A Document To Review And Sign.

REVIEW DOCUMENTS       

Dear -

Enclosed please find the original contract agreement for your signature. Please sign via Docusign . We will return a fully executed copy for your records upon completion of the agreement.

Sincerely,

Board Of Directors

Screenshot of the promoted phishing site:

Another example of DocuSign-themed spam email promoting a phishing site:

Text presented within:

Subject: ******** Docusign Contract

******** DocuSign sent you a document to review and sign.
********
REVIEW DOCUMENT
********  DocuSign
********
PRIVATE MESSAGE
******** DocuSign is sending you a digital agreement for your review and signature. Please click the yellow review document button above.

If the contract requires a different signer you can opt to assign this responsibility by using the following link:

-
If you have any additional questions please reach out to admin ********
Thank You,
DocuSign

Screenshot of the promoted phishing site:

Another example of DocuSign-themed spam email promoting a phishing site:

Text presented within:

Subject: Pending! New Document!
 
DocuSign

To: -
You have a docu⁠ment to re⁠view and si⁠gn

 
Rev⁠iew and Sign

Screenshot of the promoted phishing site:

Instant automatic malware removal:

Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:

By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by RCS LT, the parent company of PCRisk.com.

Types of malicious emails:

If you opened an attachment or downloaded a file from a suspicious email, run a full system scan with Combo Cleaner. If you only received the email and didn't engage with it, you don't need to scan anything - just identify the scam and delete it. The full procedure below covers both situations and what to do if you already clicked, replied, or sent money.

Credential theft Phishing emails

Fake login pages disguised as PayPal, Microsoft, Apple, banks, or social networks. The email pushes a link to a near-perfect copy of the real login screen. The moment you type your username and password, the attacker has them.

Common subject lines

• "Action required: confirm your account"
• "Your password expires today"
• "Unusual sign-in attempt detected"
• "Verify your billing information"

Malware delivery Emails with malicious attachments

Trojans hidden inside fake invoices, faxes, shipping confirmations, or Office documents. Opening the attachment runs the payload and infects the system - often with an info-stealer or remote-access trojan.

Common subject lines

• "Invoice INV-2026-XXXX attached"
• "Fax received - 3 pages"
• "Your shipping document is ready"
• "Voicemail from +1-XXX-XXX-XXXX"

Extortion Sextortion emails

Fake claims of webcam recordings demanding cryptocurrency. Almost always a bluff: the attacker pulls a real password from an old data breach to make the threat look credible, then claims to have video of you. They have no recording and no access.

Common subject lines

• "I know your password is XXXX"
• "Your account has been hacked"
• "I have recorded you - 48 hours to pay"
• "You have been compromised"

Callback fraud Refund & callback scams

"Your subscription was renewed for $499 - call to cancel." Norton, McAfee, Geek Squad, PayPal, and Wells Fargo variants are all common. There's no real subscription. The phone number in the email connects directly to the scammer, who walks you through "refunding" yourself - which is actually them stealing money from your bank.

Common subject lines

• "Norton subscription auto-renewed - $499.99"
• "McAfee Total Protection invoice"
• "Geek Squad order confirmation"
• "Your PayPal payment is being processed"

Credential theft Account suspension & verification scams

"Your account will be deleted in 24 hours - verify now." The artificial deadline is the whole point: it pressures you to click before checking details. The "verify" link goes to a phishing page styled to look like the real provider.

Common subject lines

• "Your account will be deleted in 24 hours"
• "Suspicious activity detected - verify now"
• "Final warning: account closure"
• "Action required to keep your account active"

Mixed payload Delivery & package scams

Fake DHL, USPS, UPS, or FedEx tracking, customs fees, or "package undeliverable" notices. Targets anyone expecting a parcel - the timing alone catches many people. The link hides either phishing (asking for card details to "release" the package) or a malware download.

Common subject lines

• "Your DHL package is held at customs"
• "USPS - delivery attempt failed"
• "FedEx tracking update - action required"
• "Pay $2.99 redelivery fee to release your parcel"

Remote access Tech support scams

Fake Microsoft, Apple, or "Windows Defender" security alerts pushing a phone number. Real Microsoft and Apple never email a phone number to call. The number connects you to a scammer who asks for remote access to "fix" the imaginary problem and then demands payment.

Common subject lines

• "Microsoft Defender expired - renew now"
• "Apple ID security alert"
• "Critical: virus detected on your PC"
• "Windows license expired - call now"

Wire fraud Advance-fee scams

Inheritance, lottery wins, romance, or business deals that ask for a small fee to release a much larger sum. The classic "Nigerian prince" 419 family of frauds. Once you pay the first fee, more fees appear (taxes, lawyer, transfer charges) until you stop paying. The promised money never exists.

Common subject lines

• "Inheritance from a relative you didn't know about"
• "You won the international lottery"
• "URGENT - business proposal worth $XX million"
• "Compensation fund release for fraud victims"

Wire fraud Business email compromise (BEC)

CEO impersonation asking employees to wire money or buy gift cards, or fake supplier invoices with newly "updated" bank details for payment redirection. The email often spoofs a real internal executive's display name and uses an external lookalike domain.

Common subject lines

• "Quick task - need you to buy gift cards"
• "Updated banking details for invoice payment"
• "Wire transfer request - urgent"
• "Are you available?" (CEO impersonation opener)

How to spot a malicious email?

Phase 1~ 2 min

Spot - identify the red flags

---

1

Check the sender's actual address, not the display name

30 sec

The display name (the human-readable part) is trivial to fake. Always check the full address that comes after it. Common red flags:

• Domain mismatch - service@paypa1.com, support@micros0ft-help.com, look-alike domains using digits or extra hyphens
• Free-email impersonation - any "official" message from a bank, courier, or platform sent from a @gmail.com, @outlook.com, or @yahoo.com address
• Reply-To mismatch - the From address looks legitimate but Reply-To points somewhere completely different

Why this matters

Real companies own their domains and send mail from them. A "DHL" message from a Gmail address is never legitimate, regardless of how convincing the body looks.

2

Watch for urgency, threats, and generic greetings

30 sec

Scams almost always rush you. The point is to make you act before you think. Treat any of the following as a strong signal:

• "Your account will be deleted in 24 hours"
• "Final notice" / "Immediate action required"
• "Dear Customer" or "Dear User" instead of your real name
• Threats of fines, account closure, legal action, or arrest
• Promises of refunds, prizes, or money you didn't earn
• Spelling and grammar mistakes in messages claiming to come from a major brand

3

Hover over every link before clicking

30 sec

On a desktop, hover the mouse over the link without clicking. The real destination shows in the bottom-left status bar of your browser or email client. On a phone, long-press the link to preview the URL.

• Real Microsoft, PayPal, or bank links go to those exact domains, not redirects through unrelated sites
• Shortened URLs (bit.ly, tinyurl, t.co) hide the real destination - never click them in unsolicited mail
• The visible link text and the actual URL must match - mismatches are the single biggest phishing red flag

Pro tip

When in doubt, don't click the link. Open a new browser tab and type the company's address yourself, then log in normally. If there really is an issue with your account, you'll see it there.

4

Treat unexpected attachments as hostile

30 sec

If you didn't ask for the file, don't open it - even if it appears to come from someone you know. Categories that should never be opened from email without verification through another channel:

• .exe, .scr, .iso, .img, .vbs, .bat - executables, never legitimate attachments
• .docx, .xlsx, .pptx with "Enable macros" prompts - the macros run the malware
• .pdf with "Click here to view" buttons - usually a phishing redirect, not a real document
• .zip, .rar, .7z archives, especially password-protected ones - the password defeats the email scanner

Phase 2~ 2 min

Report and delete - if you haven't engaged

---

If you only received the email and didn't reply, click, or open anything, the steps below are all you need. Your computer is not infected.

5

Don't reply, don't click "unsubscribe"

30 sec

Replying confirms your address is real and monitored, which gets you added to higher-value scam lists. The "unsubscribe" link in a scam message is rarely a real opt-out - it usually leads to a phishing page or downloads a tracking pixel.

Instead, mark the message as junk or phishing inside your email client (this trains the spam filter), then block the sender.

6

Report the scam to your email provider and authorities

1 min

Inside your email client:

• Gmail: open the message → ⋮ menu → Report phishing
• Outlook / Outlook.com: ⋯ menu → Report → Report phishing
• Apple Mail / iCloud: Move to Junk, then forward to reportphishing@apple.com

Forward or report to authorities:

• International: forward to reportphishing@apwg.org
• United States: ic3.gov (FBI)
• United Kingdom: forward phishing emails to report@phishing.gov.uk (NCSC SERS); for financial loss report at reportfraud.police.uk (Report Fraud, the successor to Action Fraud; 0300 123 2040)
• Canada: antifraudcentre.ca
• Australia: scamwatch.gov.au
• EU: your national CERT - find yours via the ENISA CSIRT map

After reporting, delete the email and empty the Trash folder so you don't accidentally open it later.

Phase 3~ 10–60 min

Recover - if you already engaged with the scam

---

Pick the step below that matches what you did. If multiple apply, work through them in the order they appear - the steps are arranged from lowest to highest risk.

7

You only clicked a link (didn't enter anything or download anything)

Scenario: clicked link only10 min

Close the page right away. Don't enter any information, even if the page looks legitimate.

• Clear your browser cache and cookies for the last hour - Chrome/Edge: Ctrl+Shift+Del → Last hour → check Cookies and Cached files
• Run a quick scan with Combo Cleaner in case the page tried to drop a file silently (drive-by download)
• Update your browser to the latest version - most drive-by exploits target outdated browsers
• Watch for new browser pop-ups, redirects, or unfamiliar notifications over the next few days

Why this matters

Modern browsers block most drive-by attacks, but a single click on a phishing page can still be enough on an outdated browser or unpatched plugin. A quick scan catches anything that landed silently.

8

You opened an attachment or downloaded a file - run a full malware scan

Scenario: opened attachment⚠ Highest risk60–90 min

Opening an attachment is the most common path to actual infection. Treat the system as compromised until the scans below come back clean. Work through these sub-steps in order:

8.1Disconnect from the network

Unplug Ethernet and turn off Wi-Fi. If the attachment was an info-stealer or remote-access trojan, this stops it from sending data out or receiving commands. Keep the network off until you've booted into Safe Mode (next step) - you'll reconnect there briefly to download the scanners.

8.2Boot into Safe Mode with Networking, then download the scanners

Windows 11: Settings → System → Recovery → Advanced startup → Restart now → Troubleshoot → Advanced options → Startup Settings → Restart → press 5 or F5.

Windows 10: hold Shift, click Power → Restart → Troubleshoot → Advanced options → Startup Settings → Restart → press F5.

Once Safe Mode has loaded, turn Wi-Fi back on and download Combo Cleaner (used in 8.4) and Microsoft Safety Scanner (used in 8.5). Safe Mode loads only minimal drivers, so most malware can't auto-run while you're getting the tools. Save both installers to your Desktop.

8.3Run Microsoft Defender Offline

Reboot to normal Windows. Open Windows Security → Virus & threat protection → Scan options. Select Microsoft Defender Antivirus (offline scan) and click Scan now. The PC restarts into a stripped-down environment and scans the disk before Windows fully loads - this is what catches rootkits and bootkits.

Recommended antivirus

Combo Cleaner

VB100 certified. Includes anti-trojan, registry/persistence scanning, and anti-spyware in one pass. The 7-day free trial is available.

Download Combo Cleaner

8.4Run a full Combo Cleaner scan

Install Combo Cleaner and run a full system scan (not the quick scan). Let it complete fully, review what it found, and apply the recommended actions. Combo Cleaner will quarantine known trojans and remove their persistence in the registry.

8.5Run Microsoft Safety Scanner as a second-opinion scan

Download Microsoft Safety Scanner (MSERT.exe). The binary expires every 10 days, which means every download has the latest signatures. Run a full scan after Combo Cleaner to catch anything one engine alone might miss.

8.6Reset browsers and clear notification permissions

Many email-borne trojans drop adware that hijacks browsers. Reset each browser you use:

Chrome: chrome://settings/reset → Restore settings to their original defaults. Then chrome://settings/content/notifications - remove unfamiliar sites.

Edge: edge://settings/reset. Then edge://settings/content/notifications.

Firefox: about:support → Refresh Firefox.

8.7Re-enable Defender, Tamper Protection, and update everything

Open Windows Security → Virus & threat protection → Manage settings and confirm Real-time protection, Cloud-delivered protection, and Tamper Protection are all on. Then run Settings → Windows Update → Check for updates and update browsers and applications.

Important

If the scans keep finding new threats on each run, or files reappear after deletion, you may have a deeper compromise that needs a clean Windows reinstall. See pcrisk's full manual malware removal guide for the extended procedure (Process Explorer, Autoruns, hosts file inspection).

9

You entered credentials on a fake login page

Scenario: shared password⚠ Act fast20 min

Assume the attacker has your password and is using it right now. Speed matters.

1. Change the password from a different, known-clean device (your phone is fine if it's not infected). Don't reuse the old password anywhere else.
2. Enable two-factor authentication if you haven't already. Prefer an authenticator app or hardware key over SMS.
3. Sign out of all sessions - most platforms have a "sign out everywhere" option in security settings, which kicks the attacker out.
4. Review recent activity - look for unfamiliar logins, new devices, forwarding rules, or app permissions. Remove anything you don't recognize.
5. Check your other accounts - if you reused that password anywhere else, change it there too. Check your exposure at haveibeenpwned.com.
6. Update security questions - the attacker may have seen the answers in your account profile.

Why email comes first

If you only have time to change one password, change your primary email password - it's the recovery hub for every other account. An attacker who controls your email can reset everything else.

10

You sent money or shared bank, card, or ID details

Scenario: financial loss⚠ Contact bank now30 min

Time is the single biggest factor in recovering money. Banks can sometimes recall a wire or reverse a card transaction within the first few hours.

1. Call your bank or card issuer immediately. Use the number on the back of the card, not any number from the scam email. Ask them to freeze the card, reverse the transaction if possible, and flag the account for fraud monitoring.
2. If you sent a wire transfer or used a money-transfer service (Western Union, MoneyGram, Zelle, Wise), call them directly and request a recall. Some can be reversed within minutes if reported fast.
3. If you sent cryptocurrency or gift cards, recovery is unlikely - but report it anyway, since law enforcement tracks these patterns.
4. File a police report. You'll need the report number for any insurance, bank, or credit-bureau claim. Save the report number.
5. File with the right authority for your country:
   • US: ic3.gov + reportfraud.ftc.gov
   • UK: reportfraud.police.uk (Report Fraud, the successor to Action Fraud; 0300 123 2040)
   • Canada: antifraudcentre.ca
   • Australia: scamwatch.gov.au
   • EU: your national CERT or police cybercrime unit
6. Set fraud alerts on all major credit bureaus if you shared any ID details. US: Equifax, Experian, TransUnion. UK: Experian, Equifax, TransUnion (Cifas Protective Registration is a stronger option).
7. Save all evidence - the original email (with full headers), screenshots of the fake site, transaction records, any phone numbers or chat logs.

Phase 4~ 15 min + 30 days

Verify & monitor

---

11

Final scan and startup-app check

15 min

Reconnect to the network and run one final full scan with Combo Cleaner, followed by a Windows Defender quick scan. Then open Task Manager (Ctrl + Shift + Esc) and switch to Startup apps - disable anything unfamiliar.

Make sure Windows, browsers, and any applications you use are fully up to date. The infection vector that worked on you once usually involves outdated software.

12

Monitor accounts and credit for 30 days

5 min/day · 30 days

Most fraud follow-ups land in the first month. Until that window closes, keep watching:

• Bank and card statements - daily for the first week, then weekly
• Email - watch for password-reset confirmations or login alerts you didn't trigger
• Credit report - US: free at annualcreditreport.com; UK: Experian, Equifax, TransUnion all have free tiers
• Breach alerts - sign up at haveibeenpwned.com to be notified when your email appears in new leaks

If anything new appears in any of those, treat it as a continuing compromise: change passwords again, contact the bank again, and update the police report.

Important: If you didn't click anything, didn't reply, and didn't open any attachment, your computer is not infected - just delete the email and move on. If you opened an attachment or downloaded a file, run an automated scan with Combo Cleaner and Windows Defender and stop there. That path catches the vast majority of email-borne malware without the risk of breaking Windows by deleting the wrong file.

Frequently Asked Questions (FAQ)

Why did I receive this email?

This letter was most likely sent to a large number of people. Usually, such emails are not personalized - all recipients receive the same email.

I have downloaded and opened a file attached to this email, is my computer infected?

Threat actors behind this malspam campaign use malicious MS Office documents to distribute TrickBot. Recipients infect computers after opening those documents and enabling macros commands. Your computer is not infected if you have not enabled macros commands after opening a malicious document.

I have read the email but didn't open the attachment, is my computer infected?

No, opening emails but keeping their contents unopened is completely harmless.

Will Combo Cleaner remove malware infections that were present in email attachment?

Yes, Combo Cleaner will remove malware from the operating system. This application can detect almost all known malware. If a computer is infected with high-end malware, it must be scanned using a full system scan. Usually, high-end malware hides deep in the system.