Ransom:Win32/BlackCat.A

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Ransom:Win32/BlackCat.A malware detection usually means that your computer is in big danger. This computer virus can correctly be identified as ransomware – virus which encrypts your files and asks you to pay for their decryption. Deleteing it requires some peculiar steps that must be taken as soon as possible.
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Ransom:Win32/BlackCat.A detection is a virus detection you can spectate in your computer. It frequently appears after the preliminary procedures on your PC – opening the dubious e-mail messages, clicking the advertisement in the Internet or installing the program from unreliable resources. From the moment it shows up, you have a short time to do something about it before it starts its harmful action. And be sure – it is far better not to wait for these destructive things.

What is Ransom:Win32/BlackCat.A virus?

Ransom:Win32/BlackCat.A is ransomware-type malware. It searches 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 inaccessible, this virus additionally does a lot of harm to your system. It changes the networking setups in order to avoid you from looking for the removal manuals or downloading the anti-malware program. In some cases, Ransom:Win32/BlackCat.A can additionally prevent the setup of anti-malware programs.

Ransom:Win32/BlackCat.A Summary

In total, Ransom:Win32/BlackCat.A ransomware actions in the infected PC 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;
  • Ciphering the files kept on the victim’s disks — so the victim cannot use these files;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of security tools

Ransomware has been a horror story for the last 4 years. It is difficult to picture a more harmful virus for both individual users and businesses. The algorithms utilized in Ransom:Win32/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 virus does not do all these horrible things immediately – it may require up to several hours to cipher all of your documents. Therefore, seeing the Ransom:Win32/BlackCat.A detection is a clear signal that you should begin the removal procedure.

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

Usual tactics of Ransom:Win32/BlackCat.A spreading are common for all other ransomware variants. Those are one-day landing websites where users are offered to download the free program, so-called bait e-mails and hacktools. Bait emails are a pretty new method in malware spreading – you get the email that simulates some regular notifications about shippings or bank service conditions changes. Inside of the email, there is a malicious MS Office file, or a web link which opens the exploit landing site.

Malicious email spam

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

Avoiding it looks fairly easy, however, still needs a lot of recognition. Malware can hide in different spots, and it is much better to prevent it even before it goes into your system than to depend on an anti-malware program. Basic cybersecurity awareness is just an important item in the modern-day world, even if your relationship with a PC stays on YouTube videos. That may save you a great deal of time and money which you would certainly spend while looking for a solution.

Ransom:Win32/BlackCat.A malware technical details

File Info:

name: DB7A7403E5E248D0E96E.mlw
path: /opt/CAPEv2/storage/binaries/847fb7609f53ed334d5affbb07256c21cb5e6f68b1cc14004f5502d714d2a456
crc32: 9B9516C1
md5: db7a7403e5e248d0e96efe67cef73449
sha1: 11331c98855fdf42bd94a84687661c682336fea9
sha256: 847fb7609f53ed334d5affbb07256c21cb5e6f68b1cc14004f5502d714d2a456
sha512: 4fcf43cc7d337dbe17273e217acc6e98617fc153bf1e8295be6ba7b2afe3c7efca86d5e7eddc1fdf1212c74f1cd1803c5b6b0164e4322d89757cc6897b7313f0
ssdeep: 196608:h05ZqLIe01fXHitqWTpYCq2+2PFL+gY83fJu38IRAsgqsU8fyguPV:hQqL4i0y1K2IUYMIAsV
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T100E69D55F52B64BDFA6D7078343DFB379D9C042950AA2DB7DD86AEB091AE730384800B
sha3_384: 10df6f96d1e08a4ea0cd5f56d46469de9d4517215af28ae45ceb3d1bc241a4c48e99cfba117ee75f6b8362dc431e88eb
ep_bytes: c705c8650c0100000000e9a1fcffff90
timestamp: 2022-03-27 18:47:35

Version Info:

0: [No Data]

Ransom:Win32/BlackCat.A also known as:

LionicTrojan.Win32.BlackCat.j!c
DrWebTrojan.Encoder.35191
MicroWorld-eScanTrojan.GenericKD.39380144
FireEyeTrojan.GenericKD.39380144
McAfeeGeneric .wl
MalwarebytesRansom.FileCryptor
SangforRansom.Win32.BlackCat.h
K7AntiVirusRiskware ( 00584baa1 )
AlibabaRansom:Win32/BlackCat.2c395788
K7GWRiskware ( 00584baa1 )
ArcabitTrojan.Generic.D258E4B0
CyrenW32/Blackcat.A.gen!Eldorado
SymantecRansom.Noberus
TrendMicro-HouseCallRansom_BlackCat.R002C0DD122
KasperskyTrojan-Ransom.Win32.BlackCat.h
BitDefenderTrojan.GenericKD.39380144
AvastWin32:RansomX-gen [Ransom]
TencentWin32.Trojan.Malware.Otuf
Ad-AwareTrojan.GenericKD.39380144
EmsisoftTrojan.GenericKD.39380144 (B)
ZillyaTrojan.BlackCat.Win32.2
TrendMicroRansom_BlackCat.R002C0DD122
McAfee-GW-EditionBehavesLike.Win32.Dropper.vh
SophosMal/Generic-S
IkarusTrojan-Ransom.BlackCat
JiangminTrojan.BlackCat.c
WebrootW32.Malware.Gen
MAXmalware (ai score=99)
Antiy-AVLTrojan/Generic.ASMalwS.3553D06
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/BlackCat.A
GDataTrojan.GenericKD.39380144
AhnLab-V3Ransomware/Win.BlackCat.C5040309
VBA32BScope.TrojanRansom.Agent
ALYacTrojan.Ransom.BlackCat
RisingRansom.BlackCat!8.1306F (CLOUD)
MaxSecureTrojan.Malware.150599775.susgen
FortinetW32/Trojan.R002C0DD122!tr.ransom
AVGWin32:RansomX-gen [Ransom]
PandaTrj/GdSda.A
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Ransom:Win32/BlackCat.A?

Ransom:Win32/BlackCat.A malware is very difficult to eliminate manually. It stores its files in several places throughout the disk, and can restore itself from one of the parts. Additionally, a lot of changes in the registry, networking configurations and also Group Policies are fairly hard to discover and return to the original. It is better to make use of a specific program – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the most ideal for virus elimination goals.

Why GridinSoft Anti-Malware? It is pretty 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 suitable for eliminating 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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