Win32:Citadel-Z [Trj]

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32:Citadel-Z [Trj] detection name usually means that your PC is in big danger. This virus can correctly be identified as ransomware – virus which encrypts your files and asks you to pay for their decryption. Removing it requires some specific steps that must be taken as soon as possible.
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Win32:Citadel-Z [Trj] detection is a virus detection you can spectate in your system. It generally appears after the provoking actions on your computer – opening the suspicious e-mail messages, clicking the banner in the Web or setting up the program from suspicious resources. From the moment it appears, you have a short time to take action before it starts its malicious action. And be sure – it is much better not to await these destructive effects.

What is Win32:Citadel-Z [Trj] virus?

Win32:Citadel-Z [Trj] is ransomware-type malware. It looks for the files on your disk drive, encrypts it, and then asks you to pay the ransom for receiving the decryption key. Besides making your files locked, this virus additionally does a lot of damage to your system. It modifies the networking setups in order to prevent you from reading the elimination manuals or downloading the anti-malware program. In rare cases, Win32:Citadel-Z [Trj] can additionally prevent the setup of anti-malware programs.

Win32:Citadel-Z [Trj] Summary

In summary, Win32:Citadel-Z [Trj] ransomware activities in the infected PC are next:

  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Dynamic (imported) function loading detected;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • The binary contains an unknown PE section name indicative of packing;
  • Authenticode signature is invalid;
  • Behavioural detection: Injection (Process Hollowing);
  • Executed a process and injected code into it, probably while unpacking;
  • Behavioural detection: Injection (inter-process);
  • Anomalous binary characteristics;
  • Encrypting the files located on the victim’s disks — so the victim cannot use these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-virus programs

Ransomware has actually been a nightmare for the last 4 years. It is difficult to imagine a more damaging malware for both individual users and companies. The algorithms utilized in Win32:Citadel-Z [Trj] (usually, 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. However, that malware does not do all these unpleasant things instantly – it can take up to a few hours to cipher all of your files. Therefore, seeing the Win32:Citadel-Z [Trj] detection is a clear signal that you must start the clearing procedure.

Where did I get the Win32:Citadel-Z [Trj]?

Ordinary ways of Win32:Citadel-Z [Trj] distribution are basic for all other ransomware examples. Those are one-day landing web pages where victims are offered to download the free program, so-called bait e-mails and hacktools. Bait emails are a relatively new strategy in malware distribution – you receive the e-mail that imitates some standard notifications about shipments or bank service conditions shifts. Within the email, there is a malicious MS Office file, or a link which leads to the exploit landing page.

Malicious email spam

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

Avoiding it looks fairly easy, however, still needs tons of awareness. Malware can hide in different spots, and it is far better to stop it even before it invades your PC than to rely on an anti-malware program. Standard cybersecurity knowledge is just an important thing in the modern-day world, even if your interaction with a PC remains on YouTube videos. That may save you a great deal of time and money which you would spend while searching for a fix guide.

Win32:Citadel-Z [Trj] malware technical details

File Info:

name: 14F0B32B28E86C9656E6.mlw
path: /opt/CAPEv2/storage/binaries/483b3eab70cf765427c78f33618b9708db10eb0aab871b000f20e43689618b50
crc32: AB456A35
md5: 14f0b32b28e86c9656e684462e5bd64e
sha1: 2f5cc783ac39cac6adca0e96205674fc8c1eed7d
sha256: 483b3eab70cf765427c78f33618b9708db10eb0aab871b000f20e43689618b50
sha512: 63c0f4e87682f75ac9acc8fd4400dad85b2c9d818e7d2ea061e3053d6b0e8a4c67808db893b2a87275827cedee45e2278ade759274002fd230db7429b0d5ff50
ssdeep: 6144:X4Csg/wAcsP4YeUPeYOwToSAw3HgNzx5Nod3i:ovdAFChSATV5N+y
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T13D240246BE6DDDB1C6045639A84AD28A5A242F807C21E34FC6F3F66FD93BB11849F350
sha3_384: 0bb7b26606dbc413cb011ac6bcb3912a99c929adf01481cdb8d15e61782760bb7eab8c8b8698291c8ec0e8fc87250181
ep_bytes: 558bec83c4f0b83c414000e8fcf4ffff
timestamp: 1992-06-19 22:22:17

Version Info:

FileDescription: EPSON Scan
FileVersion: 3.70
LegalCopyright: Copyright (C) SEIKO EPSON CORP. 2002
OriginalFilename: Escndv.exe
ProductName: EPSON Scan
ProductVersion: 3.7
Translation: 0x0000 0x04b0

Win32:Citadel-Z [Trj] also known as:

Elasticmalicious (high confidence)
VIPRETrojan.Win32.Ransomware.B (v)
K7AntiVirusTrojan ( 0040f2c31 )
K7GWTrojan ( 0040f2c31 )
AvastWin32:Citadel-Z [Trj]
SophosMal/Generic-R + Mal/EncPk-AGD
EmsisoftGen:Variant.Fugrafa.11158 (B)
SentinelOneStatic AI – Malicious PE
MAXmalware (ai score=99)
CynetMalicious (score: 99)
RisingSpyware.Zbot!8.16B (CLOUD)
AVGWin32:Citadel-Z [Trj]
CrowdStrikewin/malicious_confidence_100% (D)

How to remove Win32:Citadel-Z [Trj]?

Win32:Citadel-Z [Trj] malware is very difficult to delete by hand. It places its documents in a variety of places throughout the disk, and can get back itself from one of the parts. In addition, various changes in the registry, networking setups and Group Policies are pretty hard to locate and revert to the original. It is better to use a specific tool – exactly, an anti-malware app. GridinSoft Anti-Malware will definitely fit the most ideal for virus removal goals.

Why GridinSoft Anti-Malware? It is pretty lightweight and has its databases updated almost every hour. Furthermore, it does not have such problems and exploits as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware ideal 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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