What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Ransom.ChiChi detection means that your computer is in big danger. This virus can correctly be identified as ransomware – sort of malware which encrypts your files and forces you to pay for their decryption. Deleteing it requires some unusual steps that must be taken as soon as possible.
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Ransom.ChiChi detection is a malware detection you can spectate in your system. It usually shows up after the preliminary procedures on your computer – opening the dubious e-mail, clicking the banner in the Web or installing the program from dubious sources. From the second it appears, you have a short time to act until it begins its malicious action. And be sure – it is much better not to await these destructive effects.

What is Ransom.ChiChi virus?

Ransom.ChiChi is ransomware-type malware. It searches for the files on your disk drive, ciphers it, and then asks you to pay the ransom for getting the decryption key. Besides making your files inaccessible, this malware additionally does a ton of harm to your system. It changes the networking setups in order to prevent you from looking for the elimination guides or downloading the anti-malware program. In some cases, Ransom.ChiChi can additionally stop the setup of anti-malware programs.

Ransom.ChiChi Summary

In total, Ransom.ChiChi ransomware activities in the infected computer are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Possible date expiration check, exits too soon after checking local time;
  • A process attempted to delay the analysis task.;
  • Dynamic (imported) function loading detected;
  • Enumerates running processes;
  • Manipulates data from or to the Recycle Bin;
  • A process created a hidden window;
  • The binary contains an unknown PE section name indicative of packing;
  • Creates an autorun.inf file;
  • Authenticode signature is invalid;
  • A ping command was executed with the -n argument possibly to delay analysis;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete or modify volume shadow copies;
  • Deletes its original binary from disk;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Writes a potential ransom message to disk;
  • Uses suspicious command line tools or Windows utilities;
  • Encrypting the documents kept on the target’s disk — 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 apps

Ransomware has actually been a major problem for the last 4 years. It is challenging to realize a more harmful virus for both individuals and organizations. The algorithms utilized in Ransom.ChiChi (generally, 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 currently exists, and possibly will exist. However, that virus does not do all these unpleasant things without delay – it can take up to several hours to cipher all of your files. Hence, seeing the Ransom.ChiChi detection is a clear signal that you must start the removal process.

Where did I get the Ransom.ChiChi?

Standard ways of Ransom.ChiChi spreading are standard for all other ransomware variants. Those are one-day landing websites where users are offered to download the free program, so-called bait e-mails and hacktools. Bait emails are a pretty new tactic in malware distribution – you get the e-mail that simulates some regular notifications about deliveries or bank service conditions shifts. Within the e-mail, there is a corrupted MS Office file, or a web link which leads to the exploit landing site.

Malicious email spam

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

Avoiding it looks quite uncomplicated, but still demands tons of recognition. Malware can hide in different spots, and it is much better to stop it even before it gets into your computer than to rely on an anti-malware program. Standard cybersecurity knowledge is just an important thing in the modern world, even if your interaction with a PC stays on YouTube videos. That may keep you a great deal of time and money which you would spend while searching for a fix guide.

Ransom.ChiChi malware technical details

File Info:

name: 9830F350BFE14307AFE4.mlw
path: /opt/CAPEv2/storage/binaries/98482d217a0817af06217d4f02fc8bc48b31b4636ab8ef870dd2ad5056e43aea
md5: 9830f350bfe14307afe43cece54cce43
sha1: 4dcdfb0cc4a5de60a570392aafad244eb16390ea
sha256: 98482d217a0817af06217d4f02fc8bc48b31b4636ab8ef870dd2ad5056e43aea
sha512: 4d15a13eb7ed8572aebe8b8b83cb02114a3a8c3c6bb56efc704723f44491a7ce5dd3b1d5af03d84284fdefef5631c09890f7ce8b43f6869d6ced8b0e6f23e0d6
ssdeep: 12288:ux/s63oVvgWw6ISiEl+OeO+OeNhBBhhBB3+58Eb56X024Y4n23eu/BQsNbRvQbR5:uU+6mp+58yDfn23eu5vdobI
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T134E41823768ABCF6C47146B06B7BA7DAA32EEC140760C5EF62D81619587C0D33A327D5
sha3_384: 2d41e875507034c34634ec9891b3d803294dac8a5e619c8b137e2fddb6da117b00210a87e16c0bb0d20ffb4ea497aebf
ep_bytes: e854060000e98efeffff3b0d14304800
timestamp: 2021-11-19 09:20:11

Version Info:

0: [No Data]

Ransom.ChiChi also known as:

Elasticmalicious (high confidence)
K7AntiVirusTrojan ( 005786171 )
K7GWTrojan ( 005786171 )
ESET-NOD32a variant of Win32/Filecoder.Babyk.A
EmsisoftGen:Heur.Ransom.REntS.Gen.1 (B)
SentinelOneStatic AI – Malicious PE
CynetMalicious (score: 100)
MAXmalware (ai score=88)
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Ransom.ChiChi?

Ransom.ChiChi malware is very hard to remove manually. It stores its documents in a variety of locations throughout the disk, and can restore itself from one of the elements. Moreover, countless alterations in the registry, networking configurations and Group Policies are really hard to locate and revert to the original. It is far better to use a special app – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the most ideal for virus removal objectives.

Why GridinSoft Anti-Malware? It is really light-weight and has its databases updated just about every hour. Additionally, it does not have such problems and exploits as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware perfect for getting rid of 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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