Win32/Filecoder.BlackCat.A

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Win32/Filecoder.BlackCat.A malware detection means that your system is in big danger. This malware can correctly be named as ransomware – virus which ciphers your files and asks you to pay for their decryption. Deleteing it requires some unusual steps that must be taken as soon as possible.
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Win32/Filecoder.BlackCat.A detection is a virus detection you can spectate in your computer. It usually appears after the provoking actions on your computer – opening the suspicious e-mail, clicking the banner in the Web or setting up the program from dubious sources. From the instance it appears, you have a short time to act before it starts its destructive activity. And be sure – it is far better not to wait for these harmful things.

What is Win32/Filecoder.BlackCat.A virus?

Win32/Filecoder.BlackCat.A is ransomware-type malware. It searches for the documents on your disk drive, 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 ton of harm to your system. It alters the networking settings in order to prevent you from reading the elimination tutorials or downloading the anti-malware program. In rare cases, Win32/Filecoder.BlackCat.A can also block the setup of anti-malware programs.

Win32/Filecoder.BlackCat.A Summary

In total, Win32/Filecoder.BlackCat.A malware actions in the infected computer are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Guard pages use detected – possible anti-debugging.;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • CAPE detected the BlackCat malware family;
  • Anomalous binary characteristics;
  • Encrypting the files kept on the victim’s disks — so the victim cannot open these files;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of security tools

Ransomware has actually been a nightmare for the last 4 years. It is challenging to realize a more harmful virus for both individual users and companies. The algorithms used in Win32/Filecoder.BlackCat.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. However, that malware does not do all these unpleasant things immediately – it may take up to a few hours to cipher all of your documents. Hence, seeing the Win32/Filecoder.BlackCat.A detection is a clear signal that you need to start the clearing process.

Where did I get the Win32/Filecoder.BlackCat.A?

General ways of Win32/Filecoder.BlackCat.A injection are typical 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 emails and hacktools. Bait emails are a relatively modern method in malware distribution – you get the e-mail that mimics some routine notifications about deliveries or bank service conditions shifts. Within the email, there is a malicious MS Office file, or a link which opens the exploit landing site.

Malicious email spam

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

Preventing it looks fairly easy, however, still demands a lot of recognition. Malware can hide in different spots, and it is far better to stop it even before it invades your computer than to depend on an anti-malware program. Basic cybersecurity awareness is just an essential item in the modern-day world, even if your interaction with a PC stays on YouTube videos. That can keep you a great deal of time and money which you would spend while seeking a fixing guide.

Win32/Filecoder.BlackCat.A malware technical details

File Info:

name: AEA5D3CCED6725F37E2C.mlw
path: /opt/CAPEv2/storage/binaries/3d7cf20ca6476e14e0a026f9bdd8ff1f26995cdc5854c3adb41a6135ef11ba83
crc32: AFBF2FA6
md5: aea5d3cced6725f37e2c3797735e6467
sha1: 087497940a41d96e4e907b6dc92f75f4a38d861a
sha256: 3d7cf20ca6476e14e0a026f9bdd8ff1f26995cdc5854c3adb41a6135ef11ba83
sha512: 5489753ae1c3ba0dbd3e0ce1b78b0ccba045e534e77fb87c80d56b16229f928c46a15721020142bbc6bd4d1ba5c295f4bec3596efa7b46c906889c156dadbd66
ssdeep: 49152:BEqvaaAjc2hdKjb8WXqE1PiEbE/TKMt3/RgaJ2wW:BbyaALKjwWXV1P9oVvwwW
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T121B57C45F66391FDCD672930301EB23BE7301919421E9FA7EBED9D60FB2EB011909A19
sha3_384: 5a94307d2a63f32b9a0724372217094674072a9f824c930f028579af17c4066711db94fba601cea8124d42dbe2950690
ep_bytes: 83ec0cc70538e5620001000000e8bee5
timestamp: 2021-11-18 10:04:28

Version Info:

0: [No Data]

Win32/Filecoder.BlackCat.A also known as:

Lionic Trojan.Win32.BlackCat.j!c
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Blackcat.S26416946
ALYac Trojan.Ransom.BlackCat
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.21193
Sangfor Ransom.Win32.BlackCat.gen
K7AntiVirus Trojan ( 0058bae31 )
BitDefender Trojan.Ransom.BlackCat.B
K7GW Trojan ( 0058bae31 )
Cybereason malicious.40a41d
Symantec Ransom.Noberus
ESET-NOD32 Win32/Filecoder.BlackCat.A
APEX Malicious
Avast Win32:RansomX-gen [Ransom]
ClamAV Win.Ransomware.BlackCat-9934796-0
Kaspersky HEUR:Trojan-Ransom.Win32.BlackCat.gen
MicroWorld-eScan Trojan.Ransom.BlackCat.B
Rising Ransom.Blackcat!1.DB0B (CLOUD)
Ad-Aware Trojan.Ransom.BlackCat.B
Emsisoft Trojan.Ransom.BlackCat.B (B)
Comodo Malware@#350t0qsywecha
DrWeb Trojan.Ransom.814
TrendMicro Ransom.Win32.BLACKCAT.YXBLMA
McAfee-GW-Edition BehavesLike.Win32.Generic.vh
FireEye Generic.mg.aea5d3cced6725f3
Sophos Mal/Generic-R + Troj/Ransom-GMB
Jiangmin Trojan.BlackCat.a
Webroot W32.Ransom.Blackcat
Avira TR/Redcap.yolec
MAX malware (ai score=89)
Antiy-AVL Trojan/Generic.ASMalwS.34E8B3D
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Filecoder!MSR
Arcabit Trojan.Ransom.BlackCat.B
ViRobot Trojan.Win32.Z.Ransom.2281472
GData Trojan.Ransom.BlackCat.B
AhnLab-V3 Trojan/Win.Generic.C4830638
McAfee Ransom-BlackCat!AEA5D3CCED67
VBA32 TrojanRansom.BlackCat
Malwarebytes Ransom.FileCryptor
TrendMicro-HouseCall Ransom.Win32.BLACKCAT.YXBLMA
Tencent Win32.Trojan.Filecoder.Lqor
Ikarus Trojan-Ransom.FileCrypter
eGambit Generic.Malware
Fortinet W32/PossibleThreat
BitDefenderTheta Gen:NN.ZexaCO.34232.lIW@aO3qhC
AVG Win32:RansomX-gen [Ransom]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
MaxSecure Trojan.Malware.133591823.susgen

How to remove Win32/Filecoder.BlackCat.A?

Win32/Filecoder.BlackCat.A malware is incredibly difficult to delete by hand. It puts its documents in several locations throughout the disk, and can restore itself from one of the parts. Additionally, numerous modifications in the windows registry, networking configurations and Group Policies are quite hard to find and return to the original. It is much better to use a specific app – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the most ideal for malware elimination goals.

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