Remove Win32:Evo-gen [Susp] by Avast (Removal Guide)

If your Avast Antivirus or Avast Internet Security has detected a Win32:Evo-gen [Susp] virus, then your computer might be infected with malware.
Win32:Evo-gen [Susp] is a generic detection used by Avast Antivirus, Avast Internet Security and other antivirus products from Avast for a file that appears to have trojan-like features or behavior.
Because this detection is generic, it means that the malicious behavior exhibited by files detected as Win32:Evo-gen [Susp] can vary from once instance of this detection to the next.
[Image: Win32:Evo-gen [Susp] virus]

[Image: Win32:Evo-gen [Susp] infection by Avast]

What is the Win32:Evo-gen [Susp] infection?

Win32:Evo-gen [Susp] is a is a broad classification used by the Avast Behavior Monitor feature for software that exhibits suspicious behavior categorized as potentially malicious.
The Behavior Monitoring feature observes the behavior of processes as they run programs. If it observes a process behaving in a potentially malicious way, it reports the program the process is running as potentially malicious.

Due to the generic nature of this detection, methods of installation may vary. The Win32:Evo-gen [Susp] infections may often install themselves by copying their executable to the Windows or Windows system folders, and then modifying the registry to run this file at each system start. Win32:Evo-gen [Susp]will often modify the following subkey in order to accomplish this:

Again, the generic nature of this detection means that the Payloads performed by Win32:Evo-gen [Susp] may be highly variable, and therefore difficult to describe specifically. Win32:Evo-gen [Susp] has been observed to perform any, or all, of the following actions:

  • redirect Web traffic
  • manipulate certain Windows or third-party applications including settings or configurations
  • drop or install additional malicious programs
  • download and run additional malicious programs

Please note that this list is not exhaustive.

Is Win32:Evo-gen [Susp] a False Positive?

Files reported as Win32:Evo-gen [Susp] are not necessarily malicious. For example, users can be tricked into using non-malicious programs, such as Web browsers, to unknowingly perform malicious actions, such as downloading malware. Some otherwise harmless programs may have flaws that malware or attackers can exploit to perform malicious actions. Should you be uncertain as to whether a file has been reported correctly, we encourage you to submit the affected file to to be scanned with multiple antivirus engines.
In most cases, Avast users are trying to download pirated software, and the Avast Web Shield will pop-up with the following alert:

Suspicious file blocked!

Avast! Web Shield has blocked a harmful webpage or file.
Object: [...]
Infection: Win32:Evo-gen [Susp]
Process: [...]

If you have seen the above Avast! Web Shield alert, then your computer should not be infected with malware, because Avast should has blocked the infected file. If the notification persists, we recommend that you follow the below removal guide.

How did Win32:Evo-gen [Susp] infection got on my computer?

The Win32:Evo-gen [Susp] virus is distributed through several means. Malicious websites, or legitimate websites that have been hacked, can infect your machine through exploit kits that use vulnerabilities on your computer to install this Trojan without your permission of knowledge.

Another method used to propagate this type of malware is spam email containing infected attachments or links to malicious websites. Cyber-criminals spam out an email, with forged header information, tricking you into believing that it is from a shipping company like DHL or FedEx. The email tells you that they tried to deliver a package to you, but failed for some reason. Sometimes the emails claim to be notifications of a shipment you have made. Either way, you can’t resist being curious as to what the email is referring to – and open the attached file (or click on a link embedded inside the email). And with that, your computer is infected with the Win32:Evo-gen [Susp] virus.

The threat may also be downloaded manually by tricking the user into thinking they are installing a useful piece of software, for instance a bogus update for Adobe Flash Player or another piece of software.

How to remove Win32:Evo-gen [Susp] virus (Removal Guide)

This page is a comprehensive guide, which will remove the Win32:Evo-gen [Susp] infection from your your computer. Please perform all the steps in the correct order. If you have any questions or doubt at any point, STOP and ask for our assistance.
STEP 1: Remove Win32:Evo-gen [Susp] Master Boot Record infection with Kaspersky TDSSKiller
STEP 2: Run RKill to terminate Win32:Evo-gen [Susp] malicious processes
STEP 3: Remove Win32:Evo-gen [Susp] virus with Malwarebytes Anti-Malware Free
STEP 4: Remove Win32:Evo-gen [Susp] trojan with RogueKiller
STEP 5:  Remove Win32:Evo-gen [Susp] infection with HitmanPro
STEP 6: Double check for any left over infections with Emsisoft Emergency Kit
STEP 7: Remove Win32:Evo-gen [Susp] adware with AdwCleaner
STEP 8: Remove Win32:Evo-gen [Susp] browser hijacker with Junkware Removal Tool

STEP 1:  Remove Win32:Evo-gen [Susp] trojan with Kaspersky TDSSKiller

As part of its self defense mechanism, Win32:Evo-gen [Susp] virus will install a ZeroAccess rootkit on the infected computer.In this first step, we will run a system scan with Kaspersky TDSSKiller to remove this rookit.

  1. Please download the latest official version of Kaspersky TDSSKiller.
    KASPERSKY TDSSKILLER DOWNLOAD LINK(This link will automatically download Kaspersky TDSSKiller on your computer.)
  2. Double-click on tdsskiller.exe to open this utility, then click on Change Parameters.
    Kaspersky TDSSKiller change settings
  3. In the new open window,we will need to enable Detect TDLFS file system, then click on OK.
    Kaspersky TDSSKiller Detect TDLFS file system
  4. Next,we will need to start a scan with Kaspersky, so you’ll need to press the Start Scan button.
    Kaspersky TDSSKiller start scan
  5. Kaspersky TDSSKiller will now scan your computer for Trojan Win32:Evo-gen [Susp] infection.
    Kaspersky TDSSKiller scan
  6. When the scan has finished it will display a result screen stating whether or not the infection was found on your computer. If it was found it will display a screen similar to the one below.
    Kaspersky TDSSKiller results
  7. To remove the infection simply click on the Continue button and TDSSKiller will attempt to clean the infection.A reboot will be require to completely remove any infection from your system.

STEP 2: Run RKill to terminate Win32:Evo-gen [Susp] malicious processes

RKill is a program that will attempt to terminate all malicious processes associated with Win32:Evo-gen [Susp] infection, so that we will be able to perform the next step without being interrupted by this malicious software.
Because this utility will only stop Win32:Evo-gen [Susp] running process, and does not delete any files, after running it you should not reboot your computer as any malware processes that are configured to start automatically will just be started again.

  1. While your computer is in Safe Mode with Networking ,please download the latest official version of RKill.Please note that we will use a renamed version of RKILL so that Proven Antivirus Protection won’t block this utility from running.
    RKILL DOWNLOAD LINK (This link will automatically download RKILL renamed as iExplore.exe)
  2. Double click on iExplore.exe to start RKill and stop any processes associated with Win32:Evo-gen [Susp].
    [Image: RKILL Program]
  3. RKill will now start working in the background, please be patient while the program looks for Win32:Evo-gen [Susp] malicious process and tries to end them.
    [Image: RKILL stoping malware]
  4. When the Rkill utility has completed its task, it will generate a log. Do not reboot your computer after running RKill as the malware programs will start again.
    [Image: RKill Report]

STEP 3: Remove Win32:Evo-gen [Susp] virus with Malwarebytes Anti-Malware FREE

Malwarebytes Anti-Malware Free is a powerful on-demand scanner which will remove Win32:Evo-gen [Susp] malicious files from your computer.

  1. You can download Malwarebytes Anti-Malware Free from the below link, then double-click on the icon named mbam-setup.exe to install this program.
    MALWAREBYTES ANTI-MALWARE DOWNLOAD LINK(This link will open a download page in a new window from where you can download Malwarebytes Anti-Malware Free)
  2. When the installation begins, keep following the prompts in order to continue with the setup process, then at the last screen click on the Finish button.
    [Image: Malwarebytes Anti-Malware final installation screen]
  3. On the Scanner tab, select Perform quick scan, and then click on the Scan button to start searching for the Win32:Evo-gen [Susp] malicious files.
    [Image: Malwarebytes Anti-Malware Quick Scan]
  4. Malwarebytes’ Anti-Malware will now start scanning your computer for Win32:Evo-gen [Susp] virus as shown below.
    [Image: Malwarebytes Anti-Malware scanning for Luhe.Sirefef.A
  5. When the Malwarebytes Anti-Malware scan has finished, click on the Show Results button.
    [Image: Malwarebytes Anti-Malware scan results]
  6. You will now be presented with a screen showing you the computer infections that Malwarebytes Anti-Malware has detected. Make sure that everything is Checked (ticked), then click on the Remove Selected button.
    [Image: Malwarebytes Anti-Malwar removing Win32:Evo-gen [Susp] virus]
  7. Once your computer will restart in Windows regular mode, open Malwarebytes Anti-Malware and perform a Full System scan to verify that there are no remaining threats.

STEP 4: Remove Win32:Evo-gen [Susp] rootkit with RogueKiller

RogueKiller is a utility that will scan for the Win32:Evo-gen [Susp] rootkit, registry keys and any other malicious files on your computer.

  1. You can download the latest official version of RogueKiller from the below link.
    ROGUEKILLER DOWNLOAD LINK (This link will open a new web page from where you can download RogueKiller on your computer)
  2. Double-click on RogueKiller.exe to start this utility and then wait for the Prescan to complete.This should take only a few seconds,  then click on the Scan button to perform a system scan.
    [Image: RogueKiller scaning for Win32:Evo-gen [Susp] virus]
  3. After the scan has completed, press the Delete button to remove Win32:Evo-gen [Susp] malicious registry keys or files.
    [Image: RogueKiller Detele button]

STEP 5: Remove Win32:Evo-gen [Susp] infection with HitmanPro

HitmanPro is a second opinion scanner, designed to rescue your computer from malware (viruses, trojans, rootkits, etc.) that have infected your computer despite all the security measures you have taken (such as anti virus software, firewalls, etc.).

  1. You can download HitmanPro from the below link:
    HITMANPRO DOWNLOAD LINK (This link will open a web page from where you can download HitmanPro)
  2. Double-click on the file named HitmanPro.exe (for 32-bit versions of Windows) or HitmanPro_x64.exe (for 64-bit versions of Windows). When the program starts you will be presented with the start screen as shown below.
    HitmanPro scanner
    Click on the Next button, to install HitmanPro on your computer.
    HitmanPro installation
  3. HitmanPro will now begin to scan your computer for Win32:Evo-gen [Susp] trojan.
    HitmanPro detecting for Win32:Evo-gen [Susp] virus
  4. When it has finished it will display a list of all the malware that the program found as shown in the image below. Click on the Next button, to remove Win32:Evo-gen [Susp] virus.
    HitmanPro scan results
  5. Click on the Activate free license button to begin the free 30 days trial, and remove all the malicious files from your computer.
    [Image: HitmanPro 30 days activation button]

STEP 6: Double check for any left over infections with Emsisoft Emergency Kit

The Emsisoft Emergency Kit Scanner includes the powerful Emsisoft Scanner complete with graphical user interface. Scan the infected PC for Viruses, Trojans, Spyware, Adware, Worms, Dialers, Keyloggers and other malicious programs.

  1. You can download Emsisoft Emergency Kit from the below link,then extract it to a folder in a convenient location.
    EMSISOFT EMERGENCY KIT DOWNLOAD LINK ((This link will open a new web page from where you can download Emsisoft Emergency Kit)
  2. Open the Emsisoft Emergency Kit folder and double click EmergencyKitScanner.bat, then allow this program to update itself.
    EmergencyKitScanner.bat file
  3. After the Emsisoft Emergency Kit has update has completed,click on the Menu tab,then select Scan PC.
    Emsisoft Emergency Kit scan tab
  4. Select Smart scan and click on the SCAN button to search for “Antivirus Security 2013″ malicious files.
    Emsisoft Emergency Kit smart scan
  5. When the scan will be completed,you will be presented with a screen reporting which malicious files has Emsisoft detected on your computer, and you’ll need to click on Quarantine selected objects to remove them.
    Emsisoft Emergency Kit removing malware

STEP 7: Remove Win32:Evo-gen [Susp] adware with AdwCleaner

The AdwCleaner utility will scan your computer for Win32:Evo-gen [Susp] malicious files that may have been installed on your computer without your knowledge.

  1. You can download AdwCleaner utility from the below link.
    ADWCLEANER DOWNLOAD LINK (This link will automatically download AdwCleaner on your computer)
  2. Before starting AdwCleaner, close all open programs and internet browsers, then double-click on the AdwCleaner icon.
    [Image: AdwCleaner Icon]
    If Windows prompts you as to whether or not you wish to run AdwCleaner, please allow it to run.
  3. When the AdwCleaner program will open, click on the Scan button as shown below.
    [Image: Adwcleaner Scan]
    AdwCleaner will now start to search for Win32:Evo-gen [Susp] malicious files that may be installed on your computer.
  4. To remove the Win32:Evo-gen [Susp] malicious files that were detected in the previous step, please click on the Clean button.
    [Image: AdwCleaner removing infections]
    AdwCleaner will now prompt you to save any open files or data as the program will need to reboot the computer. Please do so and then click on the OK button.

STEP 8: Remove Win32:Evo-gen [Susp] browser hijack with Junkware Removal Tool

Junkware Removal Tool is a powerful utility, which will remove Win32:Evo-gen [Susp] virus from Internet Explorer, Firefox or Google Chrome.

  1. You can download the Junkware Removal Tool utility from the below link:
    JUNKWARE REMOVAL TOOL DOWNLOAD LINK (This link will automatically download the Junkware Removal Tool utility on your computer)
  2. Once Junkware Removal Tool has finished downloading, please double-click on the JRT.exe icon as seen below.
    [Image: Junkware Removal Tool]
    If Windows prompts you as to whether or not you wish to run Junkware Removal Tool, please allow it to run.
  3. Junkware Removal Tool will now start, and at the Command Prompt, you’ll need to press any key to perform a scan for the Win32:Evo-gen [Susp].
    [Image: Junkware Removal Tool scanning for Win32:Evo-gen [Susp] virus]
    Please be patient as this can take a while to complete (up to 10 minutes) depending on your system’s specifications.
  4. When the scan Junkware Removal Tool will be completed, this utility will display a log with the malicious files and registry keys that were removed from your computer.
    [Image: Junkware Removal Tool final log]

Your computer should now be free of the Win32:Evo-gen [Susp] infection. If your current anti-virus solution let this infection through, you may want to consider purchasing the PRO version of Malwarebytes Anti-Malware to protect against these types of threats in the future, and perform regular computer scans with HitmanPro.
If you are still experiencing problems while trying to remove Win32:Evo-gen [Susp] from your machine, please start a new thread in our Malware Removal Assistance forum.


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FC Barcelona fan, Starbucks addicted and super geek.
I am the creator and owner of
My area of expertise includes malware removal and computer forensics. I'm active in the various online anti-malware communities where I do researches for new malware threats as they are released.
I live in Bucharest (Romania), where I run my own local computer repair shop.
I repair both hardware and other operating systems related issues, however most of my business is malware related problems.

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  • Stelian Pilici

    Hello Lucky,
    It depends. Win32 Evo-gen is a heuristic detection, so an antivirus may pop-up this alert for another type of infection. Just to be on the safe side, I recommend that you follow the steps from this guide:) ….

  • Stelian Pilici

    Hello Tom,
    Not a bad idea, let them know about the file, so that they may added to their exclusions. :)

  • Stelian Pilici

    PGPfsshl.dll is a related to PGP Desktop, and it’s not a malicious file, so basically this is a false positive.
    Here are more details about this PGPfsshl.dll:
    PGP Desktop is a security tool that uses cryptography to protect your data against unauthorized access. Hard drive encryption software locks down the entire contents of a laptop, desktop, external drive, or USB flash drive, including boot sectors, system, and swap files. Creates storage-independent encrypted containers for transport and sharing of specific files using included utilities; PGP Self-Decrypting Archive, PGP Virtual Disk, and PGP Zip.

    So now, you have two options:
    Either you add this file to Avast Antivirus exclusions, or if you don’t need PGP Desktop, you can uninstall it from your computer.
    Stay safe!

  • Stelian Pilici

    As long as it is in Avast’s quarantine, you should be ok! Just to be on the safe side, you can run a scan with HitmanPro and Malwarebytes…

    Stay safe!

  • Amiek

    Hi! Thanks for the great article. I’m getting really annoyed. Avast detects Win32:Evo-gen, I’ve run tdsskiller, mbam, Mese and hitpmanpro and neither finds it. I’m almost starting to believe it’s an Avast hoax to do an upgrade….

    • Stelian Pilici

      Hello Amiek,
      Which file (path of the infection) is detected as Win32:Evo-gen [Susp] by Avast?
      eg: C:Windowssystem32random.exe
      Stay safe!