What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32/Packed.7Zip.A detection name usually means that your PC is in big danger. This malware can correctly be named as ransomware – virus which ciphers your files and forces you to pay for their decryption. Stopping it requires some peculiar steps that must be done as soon as possible.
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Win32/Packed.7Zip.A detection is a virus detection you can spectate in your system. It frequently appears after the preliminary procedures on your PC – opening the suspicious email messages, clicking the advertisement in the Web or mounting the program from unreliable sources. From the moment it shows up, you have a short time to act until it begins its destructive activity. And be sure – it is better not to wait for these harmful things.

What is Win32/Packed.7Zip.A virus?

Win32/Packed.7Zip.A is ransomware-type malware. It searches for the documents on your disk drives, encrypts it, and then asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this malware additionally does a lot of damage to your system. It modifies the networking settings in order to prevent you from looking for the removal articles or downloading the anti-malware program. In some cases, Win32/Packed.7Zip.A can additionally prevent the setup of anti-malware programs.

Win32/Packed.7Zip.A Summary

In total, Win32/Packed.7Zip.A malware actions in the infected PC are next:

  • Sample contains Overlay data;
  • Presents an Authenticode digital signature;
  • Reads data out of its own binary image;
  • A HTTP/S link was seen in a script or command line;
  • Drops a binary and executes it;
  • Unconventionial language used in binary resources: Russian;
  • Authenticode signature is invalid;
  • A ping command was executed with the -n argument possibly to delay analysis;
  • Uses Windows utilities for basic functionality;
  • Detects the presence of Windows Defender AV emulator via files;
  • Anomalous binary characteristics;
  • Suspicious use of certutil was detected;
  • Uses suspicious command line tools or Windows utilities;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Encrypting the files kept on the victim’s drive — so the victim cannot open these documents;
  • Blocking the launching of .exe files of anti-malware programs
  • Blocking the launching of installation files of anti-virus programs

Ransomware has been a major problem for the last 4 years. It is challenging to picture a more damaging malware for both individual users and corporations. The algorithms used in Win32/Packed.7Zip.A (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 actually exists, and possibly will exist. But that malware does not do all these bad things immediately – it may require up to a few hours to cipher all of your files. Thus, seeing the Win32/Packed.7Zip.A detection is a clear signal that you should start the elimination procedure.

Where did I get the Win32/Packed.7Zip.A?

Ordinary methods of Win32/Packed.7Zip.A injection are basic for all other ransomware variants. Those are one-day landing websites where users are offered to download the free software, so-called bait emails and hacktools. Bait e-mails are a relatively new strategy in malware distribution – you get the email that imitates some standard notifications about deliveries or bank service conditions changes. Inside of the e-mail, there is a malicious MS Office file, or a link which opens the exploit landing page.

Malicious email spam

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

Preventing it looks fairly simple, however, still needs a lot of attention. 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. Common cybersecurity awareness is just an essential item 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 fix guide.

Win32/Packed.7Zip.A malware technical details

File Info:

name: D8A8599E2325010E356D.mlw
path: /opt/CAPEv2/storage/binaries/021fb6384caf7f0b9afadbe363849424073d001c162eaa30ec1c4e18359734ba
crc32: 1774AF93
md5: d8a8599e2325010e356d1bf13395e0af
sha1: 689a59ba3a0c4cfcbae7201cc09a986bc968b8f2
sha256: 021fb6384caf7f0b9afadbe363849424073d001c162eaa30ec1c4e18359734ba
sha512: a56632b88a8b5e2bb938ee68a6a672650d2386ea18975b9d58156f2ad9efac5e4d6fa574e4c28a213cffd5c44c0355c5005e04b9801c92fe2ceef4a342e08799
ssdeep: 49152:6sOXm4VF5ZCVpSm3/gjkl0+827d/GpncQ:6nxwDf3IjX27ocQ
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T16A8523323AE45175D6DB07708AD37A7C89EDA3612D398683791E01C92F6CE46DF7B00A
sha3_384: 2e1b4deac4a7751f8927540f8e386de0c04a128d93ac43097189c4740989d6facf9006ee93541d5b933029bd2c1e0940
ep_bytes: 558bec6aff68e84d410068f01c410064
timestamp: 2012-01-21 00:48:59

Version Info:

Comments: Ehe Manier Pago Ng
CompanyName: Vivui Vidalvide AlikaЕ­ze Lanta
FileDescription: Triono Subjekta Bo AlikaЕ­ze
LegalCopyright: Spite Termo Ree Centi
LegalTrademarks: Per Primitiva Vice Os
ProductName: Montrovorto Tia Ci Kabo
FileVersion: 18.9.533
ProductVersion: 18.9.533
InternalName: Volitivo Mal Dato Apude
OriginalFilename: RolfinaДµo.exe
Translation: 0x0409 0x04b0

Win32/Packed.7Zip.A also known as:

K7AntiVirusTrojan ( 00570e831 )
K7GWTrojan ( 00570e831 )
Elasticmalicious (high confidence)
CynetMalicious (score: 99)
AvastWin32:7Drop-D [Trj]
EmsisoftTrojan.GenericKD.37724107 (B)
MAXmalware (ai score=81)
SentinelOneStatic AI – Suspicious PE
AVGWin32:7Drop-D [Trj]
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Win32/Packed.7Zip.A?

Win32/Packed.7Zip.A malware is incredibly difficult to erase by hand. It puts its files in multiple places throughout the disk, and can get back itself from one of the parts. Additionally, a range of changes in the registry, networking settings and Group Policies are fairly hard to identify and return to the original. It is far better to use a specific program – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the most ideal for virus elimination reasons.

Why GridinSoft Anti-Malware? It is really light-weight and has its databases updated nearly every hour. Furthermore, it does not have such bugs and exposures as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware perfect 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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