What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Worm:Win32/Mofksys detection means that your system is in big danger. This virus can correctly be identified as ransomware – type of malware which encrypts your files and asks you to pay for their decryption. Deleteing it requires some specific steps that must be taken as soon as possible.
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Worm:Win32/Mofksys detection is a malware detection you can spectate in your system. It generally shows up after the preliminary activities on your PC – opening the dubious e-mail, clicking the advertisement in the Internet or setting up the program from untrustworthy sources. From the moment it shows up, you have a short time to act before it begins its malicious activity. And be sure – it is much better not to await these harmful effects.

What is Worm:Win32/Mofksys virus?

Worm:Win32/Mofksys is ransomware-type malware. It looks for the documents on your disk drive, encrypts it, and after that asks you to pay the ransom for getting the decryption key. Besides making your files locked, this virus also does a lot of damage to your system. It changes the networking setups in order to prevent you from reading the removal guidelines or downloading the antivirus. In rare cases, Worm:Win32/Mofksys can additionally block the setup of anti-malware programs.

Worm:Win32/Mofksys Summary

In total, Worm:Win32/Mofksys virus activities in the infected PC are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • Sample contains Overlay data;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • Executable file is packed/obfuscated with Themida;
  • Authenticode signature is invalid;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Checks the version of Bios, possibly for anti-virtualization;
  • Detects VirtualBox through the presence of a registry key;
  • Anomalous binary characteristics;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Encrypting the documents kept on the victim’s disk — so the victim cannot check these files;
  • Blocking the launching of .exe files of anti-malware programs
  • Blocking the launching of installation files of security tools

Ransomware has been a horror story for the last 4 years. It is challenging to picture a more dangerous virus for both individuals and organizations. The algorithms utilized in Worm:Win32/Mofksys (typically, 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. However, that virus does not do all these unpleasant things instantly – it can take up to several hours to cipher all of your documents. Hence, seeing the Worm:Win32/Mofksys detection is a clear signal that you must start the removal procedure.

Where did I get the Worm:Win32/Mofksys?

General tactics of Worm:Win32/Mofksys distribution are usual for all other ransomware examples. Those are one-day landing sites where users are offered to download and install the free software, so-called bait emails and hacktools. Bait e-mails are a quite new tactic in malware distribution – you get the email that imitates some regular notifications about shipments or bank service conditions modifications. Within 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.

Avoiding it looks pretty uncomplicated, however, still requires a lot of attention. Malware can hide in different places, and it is better to stop it even before it invades your PC than to rely upon an anti-malware program. Common cybersecurity awareness is just an important item in the modern world, even if your relationship with a PC remains on YouTube videos. That can keep you a lot of money and time which you would spend while trying to find a fixing guide.

Worm:Win32/Mofksys malware technical details

File Info:

name: B2115FFBF47E8529B1D7.mlw
path: /opt/CAPEv2/storage/binaries/bff41ff86d68788b51c04f57eceb8e81faaf497fc359d28ac51ed7a2fcb13023
crc32: 8450859A
md5: b2115ffbf47e8529b1d76e5d0ba9bb08
sha1: 5cecde1e9b814a44cd3eba7185f3d86e96d56bf4
sha256: bff41ff86d68788b51c04f57eceb8e81faaf497fc359d28ac51ed7a2fcb13023
sha512: 897c8b99184027a91ce839df78deb2404927e8359a2c85764e2d1fd47feda0d889847b1e699e4ef07a729c107d51a114ba4f71265fd833a4cd2549d9f64d2b3f
ssdeep: 49152:S46/TBevM4qITxAs1cmTm6yU9K/C+5ftYMALbotv4IYZnITofy6OFSL6NOFtstcp:S4kBe04qJs1PByU9K6+nYM0botv4IYNT
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1E4D533A927A67C61E9D80D3C6131D3C45EC50461E39C216F3214AB4FFF935B4AD6AA0B
sha3_384: f60e26207d17a174563476e7adff1110df143c1470188da80f84c8320081bbf1a9cc4dbb235cd8ea75c2add53cd96221
ep_bytes: e84b0100005389e3538b73088b7b10fc
timestamp: 2013-04-01 07:08:22

Version Info:

Translation: 0x0409 0x04b0
ProductName: Project1
FileVersion: 1.00
ProductVersion: 1.00
InternalName: TJprojMain
OriginalFilename: TJprojMain.exe

Worm:Win32/Mofksys also known as:

K7AntiVirusP2PWorm ( 000dfe321 )
K7GWP2PWorm ( 000dfe321 )
CrowdStrikewin/malicious_confidence_100% (W)
Elasticmalicious (high confidence)
ESET-NOD32a variant of Win32/GenKryptik.FHVH
CynetMalicious (score: 100)
RisingTrojan.Tiggre!8.ED98 (TFE:1:ij0SqVzHLvU)
EmsisoftTrojan.GenericKD.63556133 (B)
MAXmalware (ai score=81)
ZonerProbably Heur.ExeHeaderL
SentinelOneStatic AI – Suspicious PE
AVGWin32:Evo-gen [Trj]
AvastWin32:Evo-gen [Trj]

How to remove Worm:Win32/Mofksys?

Worm:Win32/Mofksys malware is incredibly hard to erase by hand. It stores its documents in numerous locations throughout the disk, and can get back itself from one of the elements. In addition, a lot of modifications in the windows registry, networking settings and Group Policies are quite hard to locate and return to the initial. It is better to make use of a specific app – exactly, an anti-malware app. GridinSoft Anti-Malware will definitely fit the best for malware elimination purposes.

Why GridinSoft Anti-Malware? It is really lightweight and has its detection databases updated almost every hour. Additionally, it does not have such bugs and weakness 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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