What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Win32/Expiro.CP detection usually means that your PC is in big danger. This virus can correctly be identified as ransomware – virus which ciphers your files and asks you to pay for their decryption. Deleteing it requires some peculiar steps that must be done as soon as possible.
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Win32/Expiro.CP detection is a malware detection you can spectate in your computer. It often appears after the provoking procedures on your PC – opening the dubious e-mail, clicking the banner in the Web or setting up the program from untrustworthy sources. From the moment it appears, you have a short time to take action before it begins its malicious action. And be sure – it is far better not to wait for these destructive effects.

What is Win32/Expiro.CP virus?

Win32/Expiro.CP is ransomware-type malware. It looks for the files on your computer, encrypts it, and then asks you to pay the ransom for getting the decryption key. Besides making your files locked, this virus additionally does a ton of damage to your system. It modifies the networking setups in order to prevent you from looking for the elimination tutorials or downloading the anti-malware program. In some cases, Win32/Expiro.CP can additionally block the setup of anti-malware programs.

Win32/Expiro.CP Summary

Summarizingly, Win32/Expiro.CP virus actions 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;
  • Dynamic (imported) function loading detected;
  • Enumerates the modules from a process (may be used to locate base addresses in process injection);
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Latvian;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • CAPE detected the RedLine malware family;
  • Encrypting the documents located on the target’s disk drives — so the victim cannot use these documents;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of anti-malware apps

Ransomware has been a horror story for the last 4 years. It is hard to realize a more harmful virus for both individual users and organizations. The algorithms utilized in Win32/Expiro.CP (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 actually exists, and possibly will exist. But that virus does not do all these horrible things immediately – it can require up to a few hours to cipher all of your documents. Hence, seeing the Win32/Expiro.CP detection is a clear signal that you have to begin the elimination process.

Where did I get the Win32/Expiro.CP?

Routine ways of Win32/Expiro.CP distribution are typical for all other ransomware variants. Those are one-day landing websites where users are offered to download and install the free software, so-called bait e-mails and hacktools. Bait emails are a relatively modern strategy in malware distribution – you get the email that simulates some routine notifications about shippings or bank service conditions modifications. Within the e-mail, there is a malicious MS Office file, or a link which leads to the exploit landing site.

Malicious email spam

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

Preventing it looks quite easy, however, still needs a lot of focus. Malware can hide in various spots, and it is better to prevent it even before it gets into your system than to depend on an anti-malware program. Essential cybersecurity awareness is just an essential thing in the modern-day world, even if your interaction with a computer remains on YouTube videos. That can save you a lot of money and time which you would spend while looking for a solution.

Win32/Expiro.CP malware technical details

File Info:

name: 50B39018172B483BF15A.mlw
path: /opt/CAPEv2/storage/binaries/a7c3cd8de7634b10b64340c3d4b50b7de29a6aa9acade5ac9d2f00f31506361f
crc32: F5E2EBAF
md5: 50b39018172b483bf15a41cb83c21af0
sha1: d5329e884c9e3814986d3c9caf93d566f2544c15
sha256: a7c3cd8de7634b10b64340c3d4b50b7de29a6aa9acade5ac9d2f00f31506361f
sha512: 016faba272b9399e55bc122faafc8cbed4cd648d1e9f54b885ef1d896543ad65c88a827f1ceaa5c2de9599bd550ab7ccad055720fc10bb071da5d7217f138765
ssdeep: 12288:OXuHGHGDVYbf3k0nAUou+JCqPHeGeuNXeRJ7TtY/aJwvgC7EOp:OXHE2BnAUYh2UZyJ7G/a2uO
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T100E4BEC2725745C0CEFD61331AA5BB4CA1FAD2B5EF64950829D8F83ACCB8AC1D448DD9
sha3_384: b4c6a8f70c2fbd7a6b1e55693770f4defc81c393f3cba39b8923756b2a25521b7750b1b9d6593d57bd47a064842043a0
ep_bytes: 5150528d0d18000000648b0101c801c8
timestamp: 2020-05-21 20:14:57

Version Info:

InternalName: bomgpiaruci.iwa
Copyright: Copyrighz (C) 2021, fudkat
Translation: 0x0114 0x046a

Win32/Expiro.CP also known as:

Elasticmalicious (high confidence)
CynetMalicious (score: 100)
VIPREVirus.Win32.Expiro.dp (v)
K7AntiVirusTrojan ( 00561cbf1 )
K7GWTrojan ( 00561cbf1 )
CrowdStrikewin/malicious_confidence_100% (W)
ESET-NOD32a variant of Win32/Expiro.CP
AvastWin32:Xpirat-C [Inf]
RisingTrojan.Kryptik!1.DAC3 (CLOUD)
SophosML/PE-A + Mal/EncPk-MK
EmsisoftTrojan.Crypt (A)
SentinelOneStatic AI – Malicious PE
MAXmalware (ai score=82)
AVGWin32:Xpirat-C [Inf]

How to remove Win32/Expiro.CP?

Win32/Expiro.CP malware is very difficult to delete by hand. It puts its documents in several locations throughout the disk, and can restore itself from one of the parts. In addition, a range of modifications in the windows registry, networking setups and Group Policies are fairly hard to locate and change to the original. It is much better to use a specific program – exactly, an anti-malware app. GridinSoft Anti-Malware will definitely fit the best for virus removal reasons.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its databases updated just about every hour. In addition, it does not have such bugs and exposures as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware suitable for eliminating 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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