How to spot scams like the "Geek Squad" email scam

What is "Geek Squad" email scam?

After examining the email, we found that it is disguised as a letter from Geek Squad, a subsidiary of Best Buy (a consumer electronics corporation). The purpose of this email is to trick recipients into calling the provided number (contacting scammers). It must be ignored. Geek Squad has nothing to do with this letter.

More about the "Geek Squad" email scam

The email claims that Greek Squad has automatically renewed the Geek Total Protection subscription. It claims that $499.99 have been charged for the services. It also contains a fake invoice number, renewal date, and service name.

These scams work when recipients believe that they have been charged for something that they have not purchased (in this case, a Geek Total Protection subscription). Scammers behind this email attempt to trick recipients into calling the +1-808-666-6112 number.

Usually, when scammers are contacted, they ask to provide personal information (e.g., full name, credit card details, social security number), or pay a "cancelation" (or other) fee. In other cases, they attempt to trick users into downloading malware or providing remote access to their computers.

Email scams in general

Usually, scammers behind such emails aim to steal identities, and personal accounts, extract money, etc. They disguise emails as official/important/urgent letters from legitimate companies or other organizations. It is important to know that emails sent by cybercriminals can be used to deliver malware.

Examples of email scams are "Norton Subscription Will Renew Today", "Mail Delivery Successful Email Scam", and "CANADIAN LOTTERY Email Scam".

How do spam campaigns infect computers?

Emails used to deliver malware contain malicious attachments or links. Malware infections are caused after executing a malicious file (e.g., MS Office document, PDF document, executable file, a file within a ZIP, RAR archive file, JavaScript file).

It is worth mentioning that opening malicious MS Office documents does not infect computers unless macros commands are enabled. However, documents opened with MS Office versions released before 2010 do not include the Protected View mode - they infect computers after opening them.

How to avoid installation of malware?

Do not open attachments and links presented in irrelevant emails sent from unknown addresses. Download software and files from official websites. Do not use P2P networks, unofficial pages, third-party downloaders, etc., as sources for downloading any software.

Keep the operating system and installed programs up to date. Activate and update them with tools/functions provided by their official developers. If you've already opened malicious attachments, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

Appearance of the "Geek Squad" email scam (GIF):

Text presented in the "Geek Squad email scam" email letter:

Subject:

Greek Squad

Dear Customer,

Thank You for choosing Geek Total Protection.
We have renewed your Subscription as per your electronic consent.
Hope you are with us.
This email is to inform you that an amount of $499.99 has been charged for the services.
For any assistance, please call: +1-808-666-6112.

Order details:
Invoice Number: GS-93404-0841036
Registered Email: -
Service: Geek Total Protection
Renewal Date: May 20, 2022
Next Renewal: May 20, 2023
Item Price:  $499.99
Shipping: $0.0
Total Price: $499.99
Note: For any service activation queries or support or if you want to cancel the subscription please call us within 24 Hours for easy assistance.
We are here to assist you with every aspect.

 warm regards,
 Geek Squad Team
+1-808-666-6112
Copyright © Geek Squad Team | 2022

Other examples of Geek Squad-themed spam emails:

Sample 1:

Text presented within:

Subject: Thank you for your order Order No : #STR-P16

GEEK SQUAD

ORDER ID : STR-P16
Order Date : 06.16.2022

Support Team : (844) 480-3111
Cancellation : (844) 870-3452

Dear Member,

Thank you for remaining a part of our Geek Squad family. Geek Squad holds a very

strong reputation in the industry and as a goodwill gesture, we are not willing to

charge our customers this year for their auto-renewal.

This email is being sent to all the users whose auto-renewal was not stopped and

was charged by the automatic debit system.

Customer Care 24*7: (844) 480 3111

Product Description

Account Type: Personal Home Subscription

Quantity:1 Device

Product:Geek Squad Internet Security

Current Plan:3 Years Subscription

Renewal Date: June 16, 2022

Payment Mode: Auto Debit

Order Total: $399.99

Payment Status: Successful

This Subscription Will Auto-Renew Every 3 Years Unless You Turn It Off. No Later Than 24 hrs. Before The End Of The Subscription Period.

If you wish to cancel this subscription Contact our Support Team (844) 480-3111 (Toll-free) for Any Queries.

Geek Squad Device Security Entitlement only PC or Mac.

Thank you,

Geek Squad

This email is being sent by Geek Squad as you have subscribed to our services

Copyright © 2022 GEEK SQUAD®, All Rights Reserved
Geek Squad, Inc.

3948 Hickory Heights Drive, Baltimore, MD 21202, US

Sample 2:

Text presented within:

Subject: Your Order Receipt From 15-Feb-2022,Check Your Invoice,Thank You

 

Geek Squad

Dear Customer,

Thank you for choosing our services. We are reaching out to remind you that your computer Protection Annual subscription has expired and Auto-Renewed today.

We would like to thank you for the completion of the maintenance plan.

We have auto-renewed your plan for 2 years and charged $399.99 against your account.

We understand that you are busy and hence could not get through to you when we are trying to contact you.

Hotline:
1-(888)-738-8146
Order Summary
Product : Complete Network Security
Invoice No. : GS-9645132-365147
Subscription Date : February 15, 2022
End Date : February 15, 2024
Renewal Status : Auto-Renewed
Renewal Amount : USD399.99

If you have any question about this invoice or you want to cancel the subscription you can reach out our Customer Support at
1-(888)-738-8146

Sample 3:

Text presented within:

Subject: Order Complete

 

Geek SQUAD
Invoice No: GSKBBW360AXV129
Your Subscription with GEEK SQUAD will Renew Today and $389.99 is about to be Debited from your account by Today. The Debited Amount will be reflected within the next 24. In case of any further clarifications or block the auto-renewal service please reach out Customer Help Center.
Billed To
Customer ID: 239028916
Invoice Number: GSKBBW360AXV129
Renewal Date: July 18, 2022
Description Quantity Unit Price Total
Geek Squad Best Buy Service (One Year Subscription) $389.99 $389.99
Subtotal $389.99
Sales Tax $0.00
Total $389.99

If you didn't authorize this Charge, you have 24 Hrs. To cancel & get an instant refund of your annual subscription, please contact our customer care: +1 (469) 297-2928

Sincerely,
Geek-Squad™ Best Buy Customer Care
+1 (469) 297-2928
Copyright @ GEEK SQUAD, 2022

Sample 4:

Text presented within:

Subject: Plan renewed id*171368

Dear #  -

Customer Order Number: DHRW49

This mail is to let you know that your yearly membership for the prior year ëxpired on (18 Aug 2022)

We are renewing your membership plan for the device & internet security shield for this year because you choose automatic payments.

The payment of $ 379.78 is being processed from the updated nominated payment method and it will appear on your banking statement in few hours.

This is a recurring charge which will be automatically debited on (18 Aug 2023) ( Next Year) unless we get a verbal consent to deactivate the current services.

In case you change your mind and cancel/void the charges or stop the auto debit payments , please contact us within 24 hours on the below mentioned number.

For ány queries or assistance , reach out to us # +1 (888) 452 7924

"Thanking you"

Tonya Keibler

«Geek Squad» Customer Care Team

Sample 5:

Text presented within:

Geek Squad
INVOICE
Geek United States

Geek Squad Inc.
7601 Penn Avenue, South Richmond, MN 55423 USA
Toll Free Helpline 1(888) 632-2710

Invoice Number: #5545455
Invoice Date: August 22, 2022
Payment Due: August 22, 2022
Amount Due (USD): $349.85

Items Quantity Price Amount
Geek Drive Anti Drive 1 $349.85 $349.85
Total: $389.56
Amount Due (USD): $389.56

Notes and Termos & Condition
Your Payment for Geek Anti Drive Services has been purchased. The charge of purchase will appear in your account in next 24-48 hours. To stop or unsubscribe call now to Geek Squad Tech Support at 1(855) 632-2710. If you did not Authorize this charge or would like to cancel the subscription call now at  1(888) 632-2710

Subtleties of your Recent Invoice:
Item: Geek Anti Drive
Receipt ID: SMKAY/587120
Installment Made By: Online
Method of shipment: Not Updated Yet Kindly call us for more Info On 1 (888) 632-2710

Additional examples of Geek Squad-themed spam emails:

Update 22 December 2022: Fraudsters have been observed using scam emails masquerading as letters from Geek Squad to trick recipients into installing a remote administration tool called ScreenConnect (formerly known as ConnectWise). Their goal is to gain remote access to computers.

Once a connection is established, cybercriminals can drop malware (e.g., ransomware), steal sensitive information, and perform other malicious activities on accessed computers.

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?

You have received this email even if you do not use any of the services provided by the Geek Squad. Scammers have sent the same email to all addresses in their database. Usually, they obtain email addresses when they get leaked after data breaches.

I have provided my personal information when tricked by this email, what should I do?

If you have provided any account credentials, change all passwords immediately. If you have provided other personal information (e.g., credit card details, ID card information) or transferred money to scammers, contact corresponding authorities as soon as possible.

I have downloaded and opened a file attached to an email used to deliver malware, is my computer infected?

It depends on the file type. If you have opened an executable file, your computer is probably already infected. In other cases, you may have avoided the infection.

I have read the email but did not open the attachment, is my computer infected?

No, computers cannot be infected by emails. They become infected after opening links or files in emails.

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

Yes, Combo Cleaner can detect and remove almost all known malware. Usually, high-end malware hides deep in the operating system. Thus, running a full system scan is required to remove it.