Ransom:Win32/StopCrypt.PBO!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Ransom:Win32/StopCrypt.PBO!MTB detection usually means that your PC is in big danger. This computer virus can correctly be identified as ransomware – sort of malware which encrypts your files and forces you to pay for their decryption. Stopping it requires some peculiar steps that must be done as soon as possible.
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Ransom:Win32/StopCrypt.PBO!MTB detection is a virus detection you can spectate in your computer. It generally shows up after the provoking actions on your PC – opening the suspicious e-mail, clicking the advertisement in the Internet or mounting the program from suspicious sources. From the second it shows up, you have a short time to act before it starts its destructive activity. And be sure – it is much better not to await these harmful actions.

What is Ransom:Win32/StopCrypt.PBO!MTB virus?

Ransom:Win32/StopCrypt.PBO!MTB is ransomware-type malware. It searches for the documents on your computer, encrypts it, and then asks you to pay the ransom for getting the decryption key. Besides making your documents inaccessible, this malware also does a ton of damage to your system. It alters the networking settings in order to prevent you from reading the removal guides or downloading the antivirus. In rare cases, Ransom:Win32/StopCrypt.PBO!MTB can even prevent the setup of anti-malware programs.

Ransom:Win32/StopCrypt.PBO!MTB Summary

In total, Ransom:Win32/StopCrypt.PBO!MTB malware activities in the infected PC are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Behavioural detection: Executable code extraction – unpacking;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Possible date expiration check, exits too soon after checking local time;
  • Dynamic (imported) function loading detected;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Marathi;
  • 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;
  • Detects Sandboxie through the presence of a library;
  • Detects Avast Antivirus through the presence of a library;
  • Behavioural detection: Injection (inter-process);
  • Created a process from a suspicious location;
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Ciphering the files located on the victim’s drives — so the victim cannot check these documents;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of security tools

Ransomware has actually been a horror story for the last 4 years. It is difficult to picture a more damaging virus for both individual users and businesses. The algorithms utilized in Ransom:Win32/StopCrypt.PBO!MTB (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 terrible things immediately – it can require up to several hours to cipher all of your documents. Therefore, seeing the Ransom:Win32/StopCrypt.PBO!MTB detection is a clear signal that you should start the removal procedure.

Where did I get the Ransom:Win32/StopCrypt.PBO!MTB?

Usual methods of Ransom:Win32/StopCrypt.PBO!MTB spreading are usual for all other ransomware examples. Those are one-day landing web pages where victims are offered to download and install the free app, so-called bait emails and hacktools. Bait emails are a quite modern method in malware distribution – you get the e-mail that imitates some regular notifications about deliveries or bank service conditions modifications. Inside of the e-mail, 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 fairly easy, but still needs a lot of awareness. Malware can hide in various spots, and it is much better to prevent it even before it goes into your system than to trust in an anti-malware program. Common cybersecurity awareness is just an important thing in the modern world, even if your interaction with a PC stays on YouTube videos. That can keep you a lot of money and time which you would certainly spend while trying to find a solution.

Ransom:Win32/StopCrypt.PBO!MTB malware technical details

File Info:

name: 25A48D25B4DA52CD08A6.mlw
path: /opt/CAPEv2/storage/binaries/c7a88ab72fee8985f3eea1f768cec5c47aaae48e8ade366a15a01346a555efec
crc32: D8BEB0AC
md5: 25a48d25b4da52cd08a613b858d02351
sha1: e25eceece56fc1ef3f95e165b47a4e016116511f
sha256: c7a88ab72fee8985f3eea1f768cec5c47aaae48e8ade366a15a01346a555efec
sha512: 44276790375eb69448296efc45bd0529302a298ede8f6b99d5d898e993bd013a9a022ff22ae6c449b5b10dcd0834fbe928781fbffe49d9c61cd980a3ac329796
ssdeep: 1536:/jf4DsllcIMoHw8NcnKotZkWI5VnQG68hm0wNpyR6s0doTEOYU/EDz5uRe:/D4UBQ809InRTh0NgRlTEZ9q
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1C434BF2176E0C072D4A74A308930D6A15E7F7C635B74498F37E8263E2E713D16AB936B
sha3_384: c3e5ed9b4d305e2fecfb8ac261eabaf29a9ab95e71098efd7290f0b5b21f4da86352a238feab2436f942a696ea654f89
ep_bytes: e825280000e989feffff578bc683e00f
timestamp: 2021-01-09 06:03:38

Version Info:

FileVersion: 49.46.71.23
Copyrighz: Copyright (C) 2022, pozkarte
ProjectVersion: 28.81.74.73

Ransom:Win32/StopCrypt.PBO!MTB also known as:

BkavW32.AIDetect.malware1
tehtrisGeneric.Malware
MicroWorld-eScanGen:Variant.Mikey.137086
FireEyeGeneric.mg.25a48d25b4da52cd
McAfeeRDN/Generic.rp
CylanceUnsafe
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 005923e21 )
K7GWTrojan ( 005923e21 )
CrowdStrikewin/malicious_confidence_100% (W)
CyrenW32/Kryptik.GMZ.gen!Eldorado
SymantecPacked.Generic.525
Elasticmalicious (high confidence)
ESET-NOD32a variant of Win32/Kryptik.HPLX
ClamAVWin.Malware.Filerepmalware-9941437-0
KasperskyHEUR:Trojan.Win32.Agent.gen
BitDefenderGen:Variant.Mikey.137086
AvastWin32:DropperX-gen [Drp]
RisingTrojan.Kryptik!8.8 (TFE:dGZlOgXM1U4JIw68dQ)
Ad-AwareGen:Variant.Mikey.137086
SophosML/PE-A
McAfee-GW-EditionBehavesLike.Win32.Trojan.dt
SentinelOneStatic AI – Suspicious PE
EmsisoftGen:Variant.Mikey.137086 (B)
IkarusTrojan-Ransom.StopCrypt
MicrosoftRansom:Win32/StopCrypt.PBO!MTB
GDataGen:Variant.Mikey.137086
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win.RunPE.C5114070
Acronissuspicious
VBA32BScope.Trojan.LokiBot
ALYacGen:Variant.Mikey.137086
MalwarebytesTrojan.MalPack.GS
APEXMalicious
MAXmalware (ai score=83)
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Kryptik.HPLT!tr
AVGWin32:DropperX-gen [Drp]
PandaTrj/GdSda.A

How to remove Ransom:Win32/StopCrypt.PBO!MTB?

Ransom:Win32/StopCrypt.PBO!MTB malware is extremely difficult to eliminate by hand. It puts its documents in numerous locations throughout the disk, and can restore itself from one of the parts. Additionally, numerous modifications in the windows registry, networking setups and also Group Policies are fairly hard to locate and return to the initial. It is far better to utilize a special app – exactly, an anti-malware app. GridinSoft Anti-Malware will fit the best for virus removal reasons.

Why GridinSoft Anti-Malware? It is really lightweight and has its databases updated nearly every hour. Furthermore, it does not have such bugs and exposures as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware suitable for clearing away 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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