What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the UDS:Trojan-Ransom.Win32.Blocker.vho malware detection means that your computer is in big danger. This computer virus can correctly be named as ransomware – type of malware which ciphers your files and forces you to pay for their decryption. Removing it requires some peculiar steps that must be taken as soon as possible.
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UDS:Trojan-Ransom.Win32.Blocker.vho detection is a virus detection you can spectate in your computer. It often shows up after the preliminary procedures on your computer – opening the dubious e-mail messages, clicking the banner in the Internet or installing the program from unreliable resources. From the instance it appears, you have a short time to do something about it until it begins its malicious activity. And be sure – it is better not to wait for these malicious actions.

What is UDS:Trojan-Ransom.Win32.Blocker.vho virus?

UDS:Trojan-Ransom.Win32.Blocker.vho is ransomware-type malware. It looks for the documents on your disk drives, ciphers 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 modifies the networking setups in order to avoid you from looking for the elimination tutorials or downloading the anti-malware program. In some cases, UDS:Trojan-Ransom.Win32.Blocker.vho can additionally prevent the setup of anti-malware programs.

UDS:Trojan-Ransom.Win32.Blocker.vho Summary

Summarizingly, UDS:Trojan-Ransom.Win32.Blocker.vho ransomware actions in the infected computer are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Creates RWX memory;
  • Guard pages use detected – possible anti-debugging.;
  • Dynamic (imported) function loading detected;
  • Reads data out of its own binary image;
  • A process created a hidden window;
  • Drops a binary and executes it;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Behavioural detection: Injection (Process Hollowing);
  • Executed a process and injected code into it, probably while unpacking;
  • Sniffs keystrokes;
  • Behavioural detection: Injection (inter-process);
  • Created a process from a suspicious location;
  • Installs itself for autorun at Windows startup;
  • Harvests cookies for information gathering;
  • Anomalous binary characteristics;
  • Ciphering the documents kept on the target’s disk drive — so the victim cannot open these documents;
  • Blocking the launching of .exe files of anti-malware apps
  • Blocking the launching of installation files of anti-malware apps

Ransomware has actually been a horror story for the last 4 years. It is challenging to realize a more dangerous virus for both individuals and corporations. The algorithms utilized in UDS:Trojan-Ransom.Win32.Blocker.vho (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy actually exists, and possibly will exist. But that malware does not do all these horrible things without delay – it may require up to a few hours to cipher all of your files. Therefore, seeing the UDS:Trojan-Ransom.Win32.Blocker.vho detection is a clear signal that you have to begin the elimination procedure.

Where did I get the UDS:Trojan-Ransom.Win32.Blocker.vho?

Standard tactics of UDS:Trojan-Ransom.Win32.Blocker.vho spreading are typical for all other ransomware variants. Those are one-day landing web pages where victims are offered to download the free software, so-called bait e-mails and hacktools. Bait emails are a relatively new method in malware spreading – you get the email that mimics some regular notifications about deliveries or bank service conditions changes. Within the email, 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 quite easy, but still needs a lot of focus. Malware can hide in various places, and it is much better to prevent it even before it invades your system than to trust in an anti-malware program. Basic cybersecurity knowledge is just an important item in the modern world, even if your relationship with a computer remains on YouTube videos. That can save you a lot of money and time which you would spend while searching for a fixing guide.

UDS:Trojan-Ransom.Win32.Blocker.vho malware technical details

File Info:

name: 236FCD6F4B697FDE59A9.mlw
path: /opt/CAPEv2/storage/binaries/111d23c1470d36a29f2fc1d2352f57fcd666dde9cb1dd394a694116e00a0bc7a
crc32: 9A2555C5
md5: 236fcd6f4b697fde59a99a4ae9cc0289
sha1: 8d32fa6d2d7763e9309b6f2ebf3ed093f1eda5b0
sha256: 111d23c1470d36a29f2fc1d2352f57fcd666dde9cb1dd394a694116e00a0bc7a
sha512: 660870eda70cc8ae80b0a5375a1523784037aed4e90e454f44d17ca8d0709e43f1de24d307bad5a01dbfefef0aa93d9521521359bc6e29dde9c121a4dcfefdee
ssdeep: 196608:0oazg7DS8oazhoazg7DS8oazg7DS8oaz8:Sg7uqDg7uqg7uq8
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1CC86023AF5D08437D1236E7CCC5BA794A8357EE02D28608A7BE81D4D9F39B8135262D7
sha3_384: c5b16e17dfdd082e5ee1be34b743ebc45a7e34230c1df1c7b935f0bea1c34783dc6dc4bb34b35d7ac096f1f4d2f129fc
ep_bytes: 55545d906a2890596a006a004975f953
timestamp: 1992-06-19 22:22:17

Version Info:

0: [No Data]

UDS:Trojan-Ransom.Win32.Blocker.vho also known as:

Elasticmalicious (high confidence)
CrowdStrikewin/malicious_confidence_90% (W)
K7GWTrojan ( 00548e051 )
K7AntiVirusTrojan ( 00548e051 )
ESET-NOD32a variant of Win32/Injector.AHHO
CynetMalicious (score: 100)
AvastWin32:MBRlock-DV [Trj]
SophosML/PE-A + Troj/Agent-BFYB
MAXmalware (ai score=89)
RisingTrojan.Injector!1.DA56 (CLASSIC)
SentinelOneStatic AI – Malicious PE
AVGWin32:MBRlock-DV [Trj]

How to remove UDS:Trojan-Ransom.Win32.Blocker.vho?

UDS:Trojan-Ransom.Win32.Blocker.vho malware is extremely difficult to delete manually. It stores its data in a variety of places throughout the disk, and can get back itself from one of the elements. Furthermore, a range of changes in the windows registry, networking settings and also Group Policies are fairly hard to locate and change to the initial. It is far better to utilize a special program – exactly, an anti-malware program. GridinSoft Anti-Malware will fit the best for virus removal purposes.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its databases updated almost every hour. Additionally, it does not have such problems and exposures as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware suitable for removing malware of any type.

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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