What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Ransom:Win32/Loktrom.A detection usually means that your PC is in big danger. This malware can correctly be identified as ransomware – sort of malware which encrypts your files and asks you to pay for their decryption. Removing it requires some unusual steps that must be taken as soon as possible.
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Ransom:Win32/Loktrom.A detection is a malware detection you can spectate in your system. It frequently appears after the preliminary actions on your computer – opening the suspicious e-mail messages, clicking the advertisement in the Internet or setting up the program from untrustworthy sources. From the second it shows up, you have a short time to act before it begins its harmful action. And be sure – it is better not to wait for these malicious effects.

What is Ransom:Win32/Loktrom.A virus?

Ransom:Win32/Loktrom.A is ransomware-type malware. It looks for the documents on your computer, encrypts it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this virus additionally does a lot of harm to your system. It alters the networking settings in order to avoid you from reading the removal manuals or downloading the anti-malware program. In rare cases, Ransom:Win32/Loktrom.A can even stop the setup of anti-malware programs.

Ransom:Win32/Loktrom.A Summary

In total, Ransom:Win32/Loktrom.A virus activities in the infected computer are next:

  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • Drops a binary and executes it;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Behavioural detection: Injection (Process Hollowing);
  • Behavioural detection: Injection (inter-process);
  • Creates a copy of itself;
  • Harvests credentials from local FTP client softwares;
  • Anomalous binary characteristics;
  • Ciphering the files kept on the target’s drive — so the victim cannot check these documents;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of security tools

Ransomware has been a headache for the last 4 years. It is hard to picture a more dangerous malware for both individuals and companies. The algorithms utilized in Ransom:Win32/Loktrom.A (typically, 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 currently exists, and possibly will exist. But that malware does not do all these bad things instantly – it may take up to several hours to cipher all of your files. Hence, seeing the Ransom:Win32/Loktrom.A detection is a clear signal that you need to start the clearing procedure.

Where did I get the Ransom:Win32/Loktrom.A?

Usual methods of Ransom:Win32/Loktrom.A injection are usual for all other ransomware examples. Those are one-day landing websites where victims are offered to download and install the free software, so-called bait e-mails and hacktools. Bait emails are a relatively new strategy in malware spreading – you get the e-mail that imitates some normal notifications about shipments or bank service conditions modifications. Within the email, there is a corrupted 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.

Avoiding it looks quite easy, however, still requires tons of awareness. Malware can hide in different places, and it is better to stop it even before it goes into your computer than to depend on an anti-malware program. Simple cybersecurity awareness is just an essential thing in the modern world, even if your interaction with a PC remains on YouTube videos. That can save you a great deal of time and money which you would spend while trying to find a fix guide.

Ransom:Win32/Loktrom.A malware technical details

File Info:

name: 308CF15885771980FD86.mlw
path: /opt/CAPEv2/storage/binaries/c1909232523042d94232943b964c30a25c6e8672594311218dea8f0987c50703
crc32: C444352A
md5: 308cf15885771980fd86d2ae6df625dc
sha1: 0b2dbc607f3fafcff6e23755be37002db62fd6bb
sha256: c1909232523042d94232943b964c30a25c6e8672594311218dea8f0987c50703
sha512: 6f629d9e903ffbeb0d6d2862e7dad16f8cecd27b46d518996cd5ffa0ba9f0b291462c3d7b1eccc6d77d7f65e64d3ae79ccfde676fcc7afdfb295cba9f4fa0ede
ssdeep: 3072:FHiA1nqD9FffFhbZHB3Sv8pDW+fI0KLhIe:UTptRfjK1
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T139A3AE21F196D432E263493119B5C6B6DAABF9131379448B67442EBEDF303C2D92836F
sha3_384: fb96fcc968dce8c9089f9255b6e82cd4dd37db2c0e9afaf0c4ec41f69a2a6ee7bd82c5b2e180c6146a540cccff0e9eab
ep_bytes: e8d2190000e989feffff8bff558bec81
timestamp: 2012-06-19 04:27:04

Version Info:

0: [No Data]

Ransom:Win32/Loktrom.A also known as:

AVGWin32:Crypt-NDR [Trj]
Elasticmalicious (high confidence)
K7AntiVirusRansomware ( 004ff5d71 )
K7GWRansomware ( 004ff5d71 )
ESET-NOD32a variant of Win32/Injector.SXM
CynetMalicious (score: 100)
AvastWin32:Crypt-NDR [Trj]
SophosML/PE-A + Troj/Slenf-E
EmsisoftTrojan.EmotetU.Gen.gqW@bKgXEvpi (B)
SentinelOneStatic AI – Malicious PE
MAXmalware (ai score=89)
RisingRansom.Gimemo!8.306 (TFE:5:17XM7z9X1PI)
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Ransom:Win32/Loktrom.A?

Ransom:Win32/Loktrom.A malware is incredibly difficult to remove by hand. It stores its documents in multiple locations throughout the disk, and can restore itself from one of the parts. In addition, various changes in the registry, networking setups and Group Policies are quite hard to locate and return to the original. It is better to utilize a special app – exactly, an anti-malware app. GridinSoft Anti-Malware will fit the most ideal for virus elimination purposes.

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