Categories: Malware

How to remove “Bulz.258431”?

The Bulz.258431 is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Bulz.258431 virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Creates RWX memory
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Creates known Njrat/Bladabindi RAT registry keys

How to determine Bulz.258431?


File Info:

name: 1A0A5A69BC8F39C5AC1D.mlwpath: /opt/CAPEv2/storage/binaries/ce487f0f405e54dbc0a3efbc9aaa9c2a842b6dcccb0ae4ee8e324b14322db8f2crc32: A06E370Amd5: 1a0a5a69bc8f39c5ac1dd1ba3093be2dsha1: a6c5442e4b34f06e7496cf3b63468e1fea14dccasha256: ce487f0f405e54dbc0a3efbc9aaa9c2a842b6dcccb0ae4ee8e324b14322db8f2sha512: e8a1453282a368aeeb9cb4750460fa23ab5ffa03328f3a1e29ed7244813c5101465f8303aca8cd9257e340604fe7ac183e726331fceb8a6fa75280eba4296ab4ssdeep: 768:6GigfQlclSNtLui2KE9JrZ8/an2Ytbzm4hQ6b90LUzYcHeUZ:6sQlgQuiq9nWq//ReRUtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T13543F50B51DE7D91C2B906727B3393C5C72EDE154613D62E34C83A29AE7D08BB9867C8sha3_384: 4ae535e266ba00c54c577c959e423c58486f6b6e5c55c152177a66eb084e79453540278623944b2ae6b5efa7510fb973ep_bytes: ff250020400000000000000000000000timestamp: 2020-11-18 10:51:28

Version Info:

Translation: 0x0000 0x04b0Comments: RealtekCompanyName: RealtekFileDescription: RealtekFileVersion: 1.3.0.0InternalName: WindowsApplication22.exeLegalCopyright: Copyright © 1998-2020 VMware, Inc.LegalTrademarks: RealtekOriginalFilename: WindowsApplication22.exeProductName: RealtekProductVersion: 1.3.0.0Assembly Version: 1.3.0.0

Bulz.258431 also known as:

Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Bulz.258431
FireEye Generic.mg.1a0a5a69bc8f39c5
ALYac Gen:Variant.Bulz.258431
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.2659203
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Trojan ( 700000121 )
Alibaba Backdoor:MSIL/Bladabindi.d9704504
K7GW Trojan ( 700000121 )
Cybereason malicious.9bc8f3
BitDefenderTheta Gen:NN.ZemsilF.34212.dm0@a0GnoMm
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Kryptik.ADT
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Backdoor.MSIL.Bladabindi.gen
BitDefender Gen:Variant.Bulz.258431
NANO-Antivirus Trojan.Win32.Bladabindi.iflbxp
Avast Win32:Trojan-gen
Tencent Msil.Backdoor.Bladabindi.Dwtm
Ad-Aware Gen:Variant.Bulz.258431
Emsisoft Gen:Variant.Bulz.258431 (B)
Comodo Malware@#ph6qzulx7mzt
DrWeb Trojan.DownLoader35.53224
McAfee-GW-Edition Artemis!Trojan
Sophos Mal/Generic-S
Ikarus Backdoor.MSIL
GData Gen:Variant.Bulz.258431
Avira TR/Dropper.MSIL.Gen
MAX malware (ai score=85)
Microsoft Trojan:Win32/Zpevdo.B
Cynet Malicious (score: 99)
AhnLab-V3 Win-Trojan/MSILKrypt09.Exp
Acronis suspicious
McAfee Artemis!1A0A5A69BC8F
Rising Malware.Obfus/MSIL@AI.100 (RDM.MSIL:rhGIrxD3v7Vb7owUQIvYRA)
Yandex Trojan.Kryptik!wgjw2WpEgDo
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/Kryptik.ADT!tr
AVG Win32:Trojan-gen
CrowdStrike win/malicious_confidence_100% (W)

How to remove Bulz.258431?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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