Win32:Krajabot-G [Trj]

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

What is Win32:Krajabot-G [Trj] infection?

In this post you will find regarding the definition of Win32:Krajabot-G [Trj] and also its unfavorable impact on your computer system. Such ransomware are a form of malware that is specified by on-line scams to demand paying the ransom by a victim.

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In the majority of the instances, Win32:Krajabot-G [Trj] ransomware will certainly advise its sufferers to initiate funds transfer for the purpose of neutralizing the amendments that the Trojan infection has presented to the sufferer’s device.

Win32:Krajabot-G [Trj] Summary

These alterations can be as adheres to:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Unconventionial language used in binary resources: Russian;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the victim’s disk drive — so the target can no longer use the information;
  • Preventing regular access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32:Krajabot-G [Trj]

One of the most normal networks through which Win32:Krajabot-G [Trj] are injected are:

  • By means of phishing e-mails;
  • As a repercussion of customer ending up on a resource that holds a malicious software;

As soon as the Trojan is successfully infused, it will certainly either cipher the information on the target’s computer or avoid the tool from functioning in a proper way – while additionally putting a ransom money note that points out the requirement for the targets to effect the repayment for the objective of decrypting the papers or recovering the data system back to the first problem. In most circumstances, the ransom note will show up when the client restarts the COMPUTER after the system has actually currently been harmed.

Win32:Krajabot-G [Trj] distribution channels.

In numerous corners of the world, Win32:Krajabot-G [Trj] grows by jumps and also bounds. Nonetheless, the ransom money notes and methods of obtaining the ransom money amount might differ depending on particular neighborhood (local) settings. The ransom money notes and also tricks of obtaining the ransom quantity might differ depending on certain regional (local) settings.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software program.

    In specific locations, the Trojans usually wrongfully report having actually discovered some unlicensed applications made it possible for on the sufferer’s device. The sharp then demands the individual to pay the ransom.

    Faulty statements regarding prohibited content.

    In nations where software program piracy is much less popular, this method is not as effective for the cyber frauds. Conversely, the Win32:Krajabot-G [Trj] popup alert might incorrectly claim to be originating from a law enforcement institution and will report having located youngster porn or other prohibited information on the device.

    Win32:Krajabot-G [Trj] popup alert might wrongly declare to be acquiring from a law enforcement institution and will report having located child porn or various other unlawful data on the tool. The alert will likewise include a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 476B1A3D
md5: 9af3e51cc702595b187155ee10cd1433
name: 9AF3E51CC702595B187155EE10CD1433.mlw
sha1: 0ff936576123c91761ae3486946ce5b73e744747
sha256: 94368b6561509976b1636d549306884d04ebcea73dee101fbec27b69eff933b2
sha512: a7d9b7f54a2afaa30805a841e5e9af5bf9337c3fcace7e6d77515033f400084cc02bb5b3c66a85da36cd09cc5a6bc0ee5ef942b6d1d84652e9245e72d7b1d85d
ssdeep: 6144:MI6tICqw15c3YvkRuuxwLCt4xoKbRiNz0PCPcw5FgOu6gqgZJHKMZiRT1gmL:B6tIZoO7RuKwLxRiaPxssjHKMZiRxf
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32:Krajabot-G [Trj] also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0055e4091 )
Elasticmalicious (high confidence)
DrWebTrojan.Winlock.3020
CynetMalicious (score: 100)
ALYacGen:Trojan.ShellStartup.EyW@aS81Rckc
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/LockScreen.dde674eb
K7GWTrojan ( 0055e4091 )
Cybereasonmalicious.cc7025
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/LockScreen.YL
APEXMalicious
AvastWin32:Krajabot-G [Trj]
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Trojan.ShellStartup.EyW@aS81Rckc
NANO-AntivirusTrojan.Win32.Winlock.eciwok
MicroWorld-eScanGen:Trojan.ShellStartup.EyW@aS81Rckc
TencentWin32.Trojan.Lockscreen.Hxzv
Ad-AwareGen:Trojan.ShellStartup.EyW@aS81Rckc
SophosML/PE-A + Mal/Zbot-AV
BitDefenderThetaAI:Packer.B0DB5CF41F
VIPREVirTool.Win32.Obfuscator.da!j (v)
TrendMicroTROJ_SPYEYE.SMEP
McAfee-GW-EditionBehavesLike.Win32.Spyeye.gh
FireEyeGeneric.mg.9af3e51cc702595b
EmsisoftGen:Trojan.ShellStartup.EyW@aS81Rckc (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan/Gimemo.do
AviraTR/Crypt.XPACK.Gen
MicrosoftRansom:Win32/LockScreen.AO
GDataGen:Trojan.ShellStartup.EyW@aS81Rckc
McAfeePWS-Spyeye.fd
MAXmalware (ai score=87)
VBA32Trojan.LE.01253
MalwarebytesMalware.Heuristic.1006
PandaGeneric Malware
TrendMicro-HouseCallTROJ_SPYEYE.SMEP
RisingRansom.LockScreen!8.83D (CLOUD)
IkarusTrojan.Win32.Spyeye
MaxSecureTrojan.Malware.7164915.susgen
FortinetW32/Kryptik.NAS!tr
AVGWin32:Krajabot-G [Trj]
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Generic.HgIASOsA

How to remove Win32:Krajabot-G [Trj] 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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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

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 Win32:Krajabot-G [Trj] 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:

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If the guide doesn’t help you to remove Win32:Krajabot-G [Trj] you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

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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