What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Win32/Citirevo.AE detection name usually means that your system is in big danger. This virus can correctly be identified as ransomware – sort 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/Citirevo.AE detection is a virus detection you can spectate in your system. It usually appears after the preliminary procedures on your PC – opening the dubious e-mail messages, clicking the advertisement in the Web or installing the program from untrustworthy sources. From the moment it appears, you have a short time to act until it starts its malicious activity. And be sure – it is far better not to wait for these destructive actions.

What is Win32/Citirevo.AE virus?

Win32/Citirevo.AE is ransomware-type malware. It looks for the files on your disks, encrypts it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents inaccessible, this virus also does a ton of harm to your system. It changes the networking setups in order to avoid you from looking for the removal articles or downloading the antivirus. In rare cases, Win32/Citirevo.AE can even block the launching of anti-malware programs.

Win32/Citirevo.AE Summary

In total, Win32/Citirevo.AE malware activities in the infected system are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Anomalous file deletion behavior detected (10+);
  • Dynamic (imported) function loading detected;
  • Enumerates running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • 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;
  • Installs itself for autorun at Windows startup;
  • Collects information to fingerprint the system;
  • Anomalous binary characteristics;
  • Clears web history;
  • Encrypting the documents located on the target’s drives — so the victim cannot open these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-malware apps

Ransomware has been a horror story for the last 4 years. It is challenging to picture a more harmful malware for both individuals and corporations. The algorithms utilized in Win32/Citirevo.AE (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have more time than our galaxy currently exists, and possibly will exist. But that malware does not do all these bad things immediately – it can take up to a few hours to cipher all of your documents. Therefore, seeing the Win32/Citirevo.AE detection is a clear signal that you should begin the clearing procedure.

Where did I get the Win32/Citirevo.AE?

Common ways of Win32/Citirevo.AE spreading are standard for all other ransomware examples. Those are one-day landing sites where users are offered to download the free software, so-called bait e-mails and hacktools. Bait emails are a relatively new tactic in malware spreading – you get the email that imitates some standard notifications about shippings or bank service conditions shifts. Within the e-mail, there is an infected MS Office file, or a web link which opens the exploit landing site.

Malicious email spam

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

Preventing it looks pretty easy, however, still requires a lot of attention. Malware can hide in various places, and it is far better to prevent it even before it invades your system than to rely upon an anti-malware program. Simple cybersecurity knowledge is just an essential thing in the modern-day world, even if your interaction with a computer remains on YouTube videos. That can keep you a lot of time and money which you would certainly spend while seeking a fix guide.

Win32/Citirevo.AE malware technical details

File Info:

name: 4654A9E88D9A1EBA004A.mlw
path: /opt/CAPEv2/storage/binaries/195a05d6f0e403b256e00634818d9a0e3e48f5c53e780a475b111f676ac092f1
crc32: 9050E481
md5: 4654a9e88d9a1eba004a62c70937df84
sha1: 5b5daae7c80dcbda037f6046156983c68788e529
sha256: 195a05d6f0e403b256e00634818d9a0e3e48f5c53e780a475b111f676ac092f1
sha512: 2dd30c59347d68b2e4a06bedf61777a9c23c691bd38dc5eddf1f7d416b6d6cae5c02fac0ef11664fdf01b06addde0e6f6b2bd55479d66e1739cd3ec61ecda4a0
ssdeep: 3072:Ks/PMK/E2Lh+OxDC1S+PEDFjqyWc14t2TVp0Bzk1DE2qulu/Ii:KssK82Dm1FsN714t4Vp0ue2qulu
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1AAE30215F360E9B6E03364BC5D2ED38E424EEE228710269A56CD069E5CCF1CBE7D6264
sha3_384: 8fb113bae4a27bb9343f915f46b01b4ddcad313c2eeb89a348b3cdecb26cf810074b0501dc51f29a7d35921085d80d45
ep_bytes: 833d6c04420000752a8b155d04420085
timestamp: 1992-06-19 04:10:01

Version Info:

0: [No Data]

Win32/Citirevo.AE also known as:

Elasticmalicious (high confidence)
CynetMalicious (score: 100)
K7AntiVirusTrojan ( 0040f23c1 )
K7GWTrojan ( 0040f23c1 )
EmsisoftGen:Variant.Razy.116715 (B)
SophosML/PE-A + Troj/Mdrop-ETG
MAXmalware (ai score=100)
PandaGeneric Malware
RisingSpyware.Voltar!1.AF1D (CLOUD)
SentinelOneStatic AI – Malicious PE
AVGWin32:Vundo-ACX [Trj]
AvastWin32:Vundo-ACX [Trj]
CrowdStrikewin/malicious_confidence_100% (D)

How to remove Win32/Citirevo.AE?

Win32/Citirevo.AE malware is very hard to delete manually. It places its documents in a variety of locations throughout the disk, and can get back itself from one of the parts. In addition, a lot of modifications in the windows registry, networking configurations and Group Policies are pretty hard to discover and change to the original. It is better to utilize a special tool – exactly, an anti-malware app. GridinSoft Anti-Malware will fit the best for malware removal objectives.

Why GridinSoft Anti-Malware? It is very lightweight and has its detection databases updated just about every hour. In addition, it does not have such bugs and exploits as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware ideal for removing malware of any form.

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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