What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Troj/Keylog-ACK infection?

In this short article you will certainly discover concerning the meaning of Troj/Keylog-ACK and also its adverse impact on your computer. Such ransomware are a type of malware that is elaborated by on the internet frauds to require paying the ransom money by a victim.

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In the majority of the instances, Troj/Keylog-ACK virus will certainly advise its sufferers to launch funds transfer for the purpose of reducing the effects of the changes that the Trojan infection has presented to the target’s device.

Troj/Keylog-ACK Summary

These alterations can be as follows:

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the victim’s hard disk drive — so the sufferer can no longer use the data;
  • Preventing regular access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


The most typical networks where Troj/Keylog-ACK are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of user ending up on a resource that hosts a harmful software;

As quickly as the Trojan is effectively infused, it will certainly either cipher the data on the victim’s PC or prevent the device from functioning in a correct way – while also positioning a ransom note that points out the need for the sufferers to impact the settlement for the purpose of decrypting the documents or recovering the data system back to the preliminary problem. In a lot of instances, the ransom money note will show up when the client restarts the COMPUTER after the system has actually already been damaged.

Troj/Keylog-ACK circulation channels.

In various edges of the globe, Troj/Keylog-ACK grows by leaps and also bounds. Nonetheless, the ransom notes as well as techniques of extorting the ransom money amount may vary relying on specific neighborhood (local) setups. The ransom money notes as well as methods of extorting the ransom money amount may vary depending on particular regional (regional) setups.

Ransomware injection

For instance:

    Faulty informs regarding unlicensed software application.

    In certain locations, the Trojans usually wrongfully report having actually identified some unlicensed applications enabled on the victim’s device. The sharp after that demands the individual to pay the ransom.

    Faulty declarations about unlawful content.

    In nations where software application piracy is less popular, this method is not as efficient for the cyber scams. Conversely, the Troj/Keylog-ACK popup alert might falsely assert to be stemming from a law enforcement organization and will certainly report having situated kid pornography or other unlawful information on the device.

    Troj/Keylog-ACK popup alert may falsely assert to be deriving from a law enforcement organization and will report having located child porn or various other prohibited information on the device. The alert will similarly contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 7C7D6536
md5: cc58d3e9c3a672f4de3917c6c5c261d4
name: elje1802_fbin_2cr1.exe
sha1: fefbdaed0d807fb69e6453471138a19a11004829
sha256: 90fb8b41bf4af7c2cf4cdc290a1452cf3e93f283d1292dfe4f50b2397b3e2cd2
sha512: aff99cfc526ad1ba55682a0ee276116711517045a3f4748dbbc20c80e8faadacd7f45e19075e7c9352b711a3d3b9239a7343dcbc0a3ab7a3fcf5649bacfb7b58
ssdeep: 6144:3ckYPcPud2J2kLhiti+aqxOL8CUcILVT/XJBFhFduf7C3FSuzEw6g23JvuL:MkYEN2kLhb0UqV7HHFdk3EqJ2L
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 2016 All rights reserved.
InternalName: Ccie
Comments: Investigating Augmenting Systemsxae Plarised Isolating Anymore
ProductName: Ccie
Languages: English
FileDescription: Investigating Augmenting Systemsxae Plarised Isolating Anymore
Translation: 0x0409 0x04b0

Troj/Keylog-ACK also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.GenericKD.33297777
Qihoo-360 Generic/Trojan.Generic.c14
McAfee RDN/Generic.tfr
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
CrowdStrike win/malicious_confidence_100% (W)
BitDefender Trojan.GenericKD.33297777
K7GW Trojan ( 0052eef11 )
K7AntiVirus Trojan ( 0052eef11 )
Symantec Trojan.Gen.MBT
ESET-NOD32 Win32/Formbook.AA
APEX Malicious
Kaspersky UDS:DangerousObject.Multi.Generic
ViRobot Trojan.Win32.S.Agent.543744.CD
Avast Win32:Malware-gen
Rising Trojan.Formbook!8.F858 (CLOUD)
Ad-Aware Trojan.GenericKD.33297777
Emsisoft Trojan.Formbook (A)
Comodo Malware@#2v4nswusnx0t6
DrWeb Trojan.PWS.Siggen2.41367
McAfee-GW-Edition BehavesLike.Win32.Dropper.hc
Sophos Troj/Keylog-ACK
Ikarus Trojan-Ransom.GandCrab
Cyren W32/Trojan.VDWI-2190
MAX malware (ai score=84)
Endgame malicious (high confidence)
Arcabit Trojan.Generic.D1FC1571
ZoneAlarm UDS:DangerousObject.Multi.Generic
Microsoft Trojan:Win32/Occamy.C
AhnLab-V3 Malware/Win32.Generic.C3994185
ALYac Trojan.Agent.FormBook
Tencent Win32.Trojan.Generic.Szvc
SentinelOne DFI – Malicious PE
eGambit Unsafe.AI_Score_99%
GData Trojan.GenericKD.33297777
BitDefenderTheta Gen:NN.ZexaF.34090.HG0@amAzeyki
AVG Win32:Malware-gen
Cybereason malicious.d0d807

How to remove Troj/Keylog-ACK virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Troj/Keylog-ACK files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Troj/Keylog-ACK you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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