Win32:Krajabot [Trj]

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Win32:Krajabot [Trj] detection usually means that your system is in big danger. This virus can correctly be named as ransomware – type of malware which ciphers your files and forces you to pay for their decryption. Removing it requires some unusual steps that must be taken as soon as possible.
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Win32:Krajabot [Trj] detection is a virus detection you can spectate in your system. It generally appears after the provoking activities on your computer – opening the suspicious e-mail, clicking the banner in the Web or installing the program from untrustworthy resources. From the moment it appears, you have a short time to do something about it before it starts its destructive action. And be sure – it is better not to await these harmful effects.

What is Win32:Krajabot [Trj] virus?

Win32:Krajabot [Trj] is ransomware-type malware. It looks for the files on your disk drives, ciphers it, and then asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this virus also does a ton of damage to your system. It changes the networking setups in order to stop you from reading the removal articles or downloading the antivirus. In rare cases, Win32:Krajabot [Trj] can even prevent the setup of anti-malware programs.

Win32:Krajabot [Trj] Summary

In total, Win32:Krajabot [Trj] ransomware activities in the infected system are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Dynamic (imported) function loading detected;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Russian;
  • The binary contains an unknown PE section name indicative of packing;
  • Authenticode signature is invalid;
  • Encrypting the documents kept on the victim’s drives — so the victim cannot open these documents;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of anti-virus programs

Ransomware has actually been a headache for the last 4 years. It is hard to imagine a more hazardous malware for both individuals and organizations. The algorithms used in Win32:Krajabot [Trj] (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need a lot more time than our galaxy already exists, and possibly will exist. However, that virus does not do all these bad things immediately – it can require up to a few hours to cipher all of your documents. Therefore, seeing the Win32:Krajabot [Trj] detection is a clear signal that you should start the removal procedure.

Where did I get the Win32:Krajabot [Trj]?

Typical ways of Win32:Krajabot [Trj] injection are usual for all other ransomware examples. Those are one-day landing sites where users are offered to download and install the free program, so-called bait emails and hacktools. Bait emails are a quite modern method in malware distribution – you receive the e-mail that imitates some standard notifications about shippings or bank service conditions shifts. Inside of the e-mail, there is a corrupted MS Office file, or a link which leads to the exploit landing page.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks pretty uncomplicated, but still demands tons of attention. Malware can hide in various places, and it is far better to prevent it even before it gets into your computer than to rely on an anti-malware program. Common cybersecurity awareness is just an essential item in the modern-day world, even if your relationship with a PC remains on YouTube videos. That may keep you a lot of time and money which you would spend while trying to find a solution.

Win32:Krajabot [Trj] malware technical details

File Info:

name: 93013B744EFE34EE1734.mlw
path: /opt/CAPEv2/storage/binaries/564e89a859b00c0e191a495ec0eaf80fdf792d97136e3d689a00c9df59632131
crc32: EBAAD26D
md5: 93013b744efe34ee1734614688a32fbc
sha1: 7a05ba9c09f6166c6efa4c51f104861cfbb36c73
sha256: 564e89a859b00c0e191a495ec0eaf80fdf792d97136e3d689a00c9df59632131
sha512: 7251b1cf8544e4254b9ff05b22bf6dc2174eb4a094a60ff593fa8a52a43a6fa73bb7e3500c5e0c64b4e470ee4aab913aca3ffe120a6313c13400128543b7b210
ssdeep: 6144:q0t13fPl5teqTla9pg1jP0CC+wbH4KH05YwhjcJWulVT5N235LVjESPa2:q0t1HLoctP0Cc08ghjElrNiQS5
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T154A602CAA901DB73CC541BFB99404F68FAF32E098C66CEE88F4214A5E5737959E84F14
sha3_384: e2b3d6eaa3bdb8f3a76d98c4ab9e00116f847c88d5fdbcced483ee19f2c3568e990ec9670a3db3863b3c017950c91f9b
ep_bytes: 558bec83c4885050e8702d0000c9c355
timestamp: 2005-09-02 09:26:37

Version Info:

0: [No Data]

Win32:Krajabot [Trj] also known as:

Elasticmalicious (high confidence)
VIPREPacked.Win32.PWSZbot.gen (v)
K7AntiVirusTrojan ( 0019b5bd1 )
K7GWTrojan ( 0019b5bd1 )
AvastWin32:Krajabot [Trj]
SophosMal/Generic-R + Mal/FakeAV-BW
EmsisoftGen:Variant.Razy.557761 (B)
CynetMalicious (score: 100)
MAXmalware (ai score=100)
RisingRansom.LockScreen!8.83D (C64:YzY0OvX20equk017)
SentinelOneStatic AI – Malicious PE
AVGWin32:Krajabot [Trj]
PandaGeneric Malware
CrowdStrikewin/malicious_confidence_100% (D)

How to remove Win32:Krajabot [Trj]?

Win32:Krajabot [Trj] malware is very difficult to remove manually. It stores its files in numerous locations throughout the disk, and can recover itself from one of the elements. Additionally, a range of alterations in the registry, networking configurations and Group Policies are quite hard to locate and return to the initial. It is far better to utilize a specific tool – exactly, an anti-malware app. GridinSoft Anti-Malware will definitely fit the best for virus elimination purposes.

Why GridinSoft Anti-Malware? It is really lightweight and has its detection databases updated almost every hour. In addition, it does not have such problems and weakness as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware ideal for getting rid of malware of any kind.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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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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