What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the PWS:Win32/Ymacco.AA0A detection usually means that your system is in big danger. This malware can correctly be named 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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PWS:Win32/Ymacco.AA0A detection is a virus detection you can spectate in your computer. It often appears after the provoking procedures on your computer – opening the dubious e-mail, clicking the banner in the Internet or mounting the program from unreliable resources. From the second it appears, you have a short time to act until it begins its harmful action. And be sure – it is much better not to wait for these malicious actions.

What is PWS:Win32/Ymacco.AA0A virus?

PWS:Win32/Ymacco.AA0A is ransomware-type malware. It searches for the files on your disk, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your files inaccessible, this malware also does a ton of damage to your system. It modifies the networking setups in order to avoid you from looking for the removal guides or downloading the anti-malware program. Sometimes, PWS:Win32/Ymacco.AA0A can also stop the launching of anti-malware programs.

PWS:Win32/Ymacco.AA0A Summary

Summarizingly, PWS:Win32/Ymacco.AA0A malware actions in the infected PC are next:

  • Dynamic (imported) function loading detected;
  • CAPE extracted potentially suspicious content;
  • .NET file is packed/obfuscated with Confuser;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Unusual version info supplied for binary;
  • Ciphering the documents kept on the victim’s disk drive — so the victim cannot open these files;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of anti-malware programs

Ransomware has actually been a nightmare for the last 4 years. It is hard to realize a more damaging malware for both individuals and businesses. The algorithms used in PWS:Win32/Ymacco.AA0A (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy currently exists, and possibly will exist. However, that virus does not do all these terrible things instantly – it can take up to several hours to cipher all of your documents. Thus, seeing the PWS:Win32/Ymacco.AA0A detection is a clear signal that you should start the elimination process.

Where did I get the PWS:Win32/Ymacco.AA0A?

Usual tactics of PWS:Win32/Ymacco.AA0A spreading are standard for all other ransomware variants. Those are one-day landing web pages where victims are offered to download and install the free app, so-called bait emails and hacktools. Bait e-mails are a pretty modern method in malware distribution – you get the email that imitates some regular notifications about shippings or bank service conditions modifications. Within the email, there is an infected 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.

Preventing it looks quite uncomplicated, however, still demands a lot of focus. Malware can hide in different spots, and it is far better to prevent it even before it invades your system than to depend on an anti-malware program. Common cybersecurity awareness is just an important thing in the modern-day world, even if your interaction with a computer remains on YouTube videos. That can keep you a great deal of time and money which you would certainly spend while searching for a solution.

PWS:Win32/Ymacco.AA0A malware technical details

File Info:

name: 8E0031895C2209C0D2F1.mlw
path: /opt/CAPEv2/storage/binaries/0aaedd52a5c321135b1ae8bc8a4a44b56c8045b3d7ec1654975b880b18da9ee9
crc32: 93E7025D
md5: 8e0031895c2209c0d2f176e4b917e3b5
sha1: b43ba8cd892676aecf6ac5654581ac0cb2402071
sha256: 0aaedd52a5c321135b1ae8bc8a4a44b56c8045b3d7ec1654975b880b18da9ee9
sha512: 6d818fc2394dadf5b5fee34ce70aa9c0d7cb51d74b28d8b6c2f6c3e9730c6dfd18b4ed4797963edac23b63a4218c6006cc3e317243c219c4c8b60e230f090eef
ssdeep: 12288:9FwKZIosLHL0FRg4bEmk5fUlEwr3HX+nbpt:9oF3KRpb/k5fyEaHMv
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1DA942347941E65ACD4352E7B070FDB6909AA7026128AF11FFF1D35A21C0E372F9A8763
sha3_384: acae9d20b2897acb1312abec03149db0d970adcd74891b9560e3868828320a25abd66a7e8c3bb061e84af2962b94d49a
ep_bytes: ff250020400000000000000000000000
timestamp: 2020-11-02 04:34:40

Version Info:

Translation: 0x0000 0x04b0
FileDescription: Command line performance monitor
FileVersion: 10.0.18362.1
InternalName: TypePerf.exe
LegalCopyright: © Microsoft Corporation. All Rights Reserved.
OriginalFilename: TypePerf.exe
ProductName: Microsoft® Windows® Operating System
ProductVersion: 10.0.18362.1
Assembly Version: 10.0.18362.1

PWS:Win32/Ymacco.AA0A also known as:

Elasticmalicious (high confidence)
K7AntiVirusPassword-Stealer ( 004d8d6a1 )
K7GWPassword-Stealer ( 004d8d6a1 )
ESET-NOD32a variant of MSIL/PSW.CoinStealer.AA
AvastWin32:RansomX-gen [Ransom]
EmsisoftGen:Variant.Bulz.205218 (B)
MAXmalware (ai score=84)
CynetMalicious (score: 100)
RisingMalware.Obfus/MSIL@AI.100 (RDM.MSIL:nRYU8rk+IIAI/LH+x29lDw)
SentinelOneStatic AI – Malicious PE
AVGWin32:RansomX-gen [Ransom]
CrowdStrikewin/malicious_confidence_80% (D)

How to remove PWS:Win32/Ymacco.AA0A?

PWS:Win32/Ymacco.AA0A malware is incredibly hard to remove manually. It places its files in a variety of locations throughout the disk, and can restore itself from one of the parts. In addition, numerous modifications in the registry, networking settings and Group Policies are quite hard to discover and revert to the original. It is better to utilize a specific app – exactly, an anti-malware program. GridinSoft Anti-Malware will fit the most ideal for malware elimination reasons.

Why GridinSoft Anti-Malware? It is really lightweight and has its databases updated almost every hour. Additionally, it does not have such problems and weakness as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware suitable 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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