Ransom.PolyRansom.B4

Spectating the Ransom.PolyRansom.B4 detection name usually means that your PC is in big danger. This malware can correctly be named as ransomware – sort of malware 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.

Ransom.PolyRansom.B4 detection is a malware detection you can spectate in your system. It usually shows up after the preliminary actions on your PC – opening the suspicious e-mail messages, clicking the advertisement in the Web or setting up the program from dubious resources. From the instance it appears, you have a short time to take action before it begins its harmful activity. And be sure – it is much better not to wait for these harmful actions.

What is Ransom.PolyRansom.B4 virus?

Ransom.PolyRansom.B4 Summary

In total, Ransom.PolyRansom.B4 ransomware actions in the infected computer are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Creates RWX memory;
  • Anomalous file deletion behavior detected (10+);
  • Dynamic (imported) function loading detected;
  • Performs HTTP requests potentially not found in PCAP.;
  • A named pipe was used for inter-process communication;
  • Enumerates running processes;
  • Reads data out of its own binary image;
  • Manipulates data from or to the Recycle Bin;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • Drops a binary and executes it;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Uses Windows utilities for basic functionality;
  • Attempts to stop active services;
  • A process attempted to delay the analysis task by a long amount of time.;
  • Created a process from a suspicious location;
  • Installs itself for autorun at Windows startup;
  • Installs itself for autorun at Windows startup;
  • Creates a hidden or system file;
  • Attempts to disable UAC;
  • Attempts to modify Explorer settings to prevent file extensions from being displayed;
  • Attempts to modify Explorer settings to prevent hidden files from being displayed;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents kept on the target’s disk — so the victim cannot use 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 horror story for the last 4 years. It is challenging to imagine a more hazardous virus for both individuals and businesses. The algorithms used in Ransom.PolyRansom.B4 (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy actually exists, and possibly will exist. But that malware does not do all these horrible things without delay – it can require up to several hours to cipher all of your files. Therefore, seeing the Ransom.PolyRansom.B4 detection is a clear signal that you must start the elimination process.

Where did I get the Ransom.PolyRansom.B4?

Ordinary tactics of Ransom.PolyRansom.B4 distribution are standard for all other ransomware variants. Those are one-day landing websites where victims are offered to download the free program, so-called bait e-mails and hacktools. Bait emails are a quite modern strategy in malware distribution – you receive the email that imitates some regular notifications about shippings or bank service conditions shifts. Within the email, there is a corrupted 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 pretty easy, but still needs tons of awareness. Malware can hide in different spots, and it is better to prevent it even before it invades your system than to rely upon an anti-malware program. Standard cybersecurity awareness is just an important item in the modern-day world, even if your interaction with a PC remains on YouTube videos. That may keep you a lot of money and time which you would spend while seeking a solution.

Ransom.PolyRansom.B4 malware technical details

File Info:

name: 29C702201E9C08BDCD6F.mlwpath: /opt/CAPEv2/storage/binaries/bf3d9a19fc083a4b4a64b02ac95183171c80d215f08e71b6dfb5e91156cf761acrc32: 1D2F3926md5: 29c702201e9c08bdcd6f455d1fc26355sha1: f3bf64eb78a8bd6430e0ca5117d79e54aa30dd76sha256: bf3d9a19fc083a4b4a64b02ac95183171c80d215f08e71b6dfb5e91156cf761asha512: 06445989bb6082be572e42863a2f25a7f501a2302d6711013f8b57d8fa4c912532b175f7e0a16e75ea886a4cfb0c485acc82ba98ba4a311be50d6221fb0ff8e0ssdeep: 24576:gk4xoOHOpE1BKqRDr04AucDkYBiSDjUA5kcGZegUt5qm2MFoMheIJC:DgqE1BaBfBQc9pt8rMi8NJCtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T13185F1BF0AAD4866FC63AF344D3FB023E354113DDC358B964A04E2C765F6A61A4A7139sha3_384: e388c9274c14d023fffaec6ab300180b3ded15f9d3997a731958b21a26b588d728a45309b22e205bd79f7c255b438679ep_bytes: e82b761b003d15ffffff0f8574000000timestamp: 2015-01-06 00:36:08

Version Info:

0: [No Data]

Ransom.PolyRansom.B4 also known as:

Elastic malicious (high confidence)
MicroWorld-eScan Gen:Trojan.Heur.UrW@v9h4!Woin
FireEye Generic.mg.29c702201e9c08bd
CAT-QuickHeal Ransom.PolyRansom.B4
ALYac Gen:Trojan.Heur.UrW@v9h4!Woin
Cylance Unsafe
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Virus ( 005662d71 )
K7GW Virus ( 005662d71 )
Cybereason malicious.01e9c0
Baidu Win32.Virus.Virlock.a
Cyren W32/S-143da1e3!Eldorado
Symantec W32.Virlock!inf4
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/Virlock.D
APEX Malicious
ClamAV Win.Virus.Virlock-6332874-0
Kaspersky Virus.Win32.PolyRansom.b
BitDefender Gen:Trojan.Heur.UrW@v9h4!Woin
NANO-Antivirus Trojan.Win32.Gena.doticp
Avast Win32:SwPatch [Wrm]
Tencent Virus.Win32.Polyransom.b
Ad-Aware Gen:Trojan.Heur.UrW@v9h4!Woin
TACHYON Virus/W32.VirRansom
Sophos ML/PE-A + W32/VirRnsm-C
Comodo TrojWare.Win32.Virlock.XU@5xaovq
DrWeb Win32.VirLock.10
Zillya Virus.Virlock.Win32.1
TrendMicro PE_VIRLOCK.D
McAfee-GW-Edition BehavesLike.Win32.VirRansom.tc
Emsisoft Gen:Trojan.Heur.UrW@v9h4!Woin (B)
Ikarus Virus.Win32.Virlock
GData Gen:Trojan.Heur.UrW@v9h4!Woin
Jiangmin Win32/Polyransom.b
Avira TR/Crypt.ZPACK.Gen
ZoneAlarm Virus.Win32.PolyRansom.b
Microsoft Trojan:Win32/Sabsik.FL.B!ml
Cynet Malicious (score: 100)
AhnLab-V3 Win32/Nabucur.C.X1541
McAfee W32/VirRansom.b
MAX malware (ai score=83)
VBA32 Virus.VirLock
Malwarebytes Trojan.VirLock
TrendMicro-HouseCall PE_VIRLOCK.D
Rising [email protected] (RDMK:cmRtazpjraLWKqdm3QZiVeuHsc1w)
Yandex Virus.Virlock.Gen.AAK
SentinelOne Static AI – Malicious PE
MaxSecure Virus.PolyRansom.b
Fortinet W32/Virlock.D
BitDefenderTheta AI:Packer.6E4777111D
AVG Win32:SwPatch [Wrm]
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_100% (D)

How to remove Ransom.PolyRansom.B4?

About the author

Robert Bailey

Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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