Malware

How to remove “Bulz.258431”?

Malware Removal

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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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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.mlw
path: /opt/CAPEv2/storage/binaries/ce487f0f405e54dbc0a3efbc9aaa9c2a842b6dcccb0ae4ee8e324b14322db8f2
crc32: A06E370A
md5: 1a0a5a69bc8f39c5ac1dd1ba3093be2d
sha1: a6c5442e4b34f06e7496cf3b63468e1fea14dcca
sha256: ce487f0f405e54dbc0a3efbc9aaa9c2a842b6dcccb0ae4ee8e324b14322db8f2
sha512: e8a1453282a368aeeb9cb4750460fa23ab5ffa03328f3a1e29ed7244813c5101465f8303aca8cd9257e340604fe7ac183e726331fceb8a6fa75280eba4296ab4
ssdeep: 768:6GigfQlclSNtLui2KE9JrZ8/an2Ytbzm4hQ6b90LUzYcHeUZ:6sQlgQuiq9nWq//ReRU
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T13543F50B51DE7D91C2B906727B3393C5C72EDE154613D62E34C83A29AE7D08BB9867C8
sha3_384: 4ae535e266ba00c54c577c959e423c58486f6b6e5c55c152177a66eb084e79453540278623944b2ae6b5efa7510fb973
ep_bytes: ff250020400000000000000000000000
timestamp: 2020-11-18 10:51:28

Version Info:

Translation: 0x0000 0x04b0
Comments: Realtek
CompanyName: Realtek
FileDescription: Realtek
FileVersion: 1.3.0.0
InternalName: WindowsApplication22.exe
LegalCopyright: Copyright © 1998-2020 VMware, Inc.
LegalTrademarks: Realtek
OriginalFilename: WindowsApplication22.exe
ProductName: Realtek
ProductVersion: 1.3.0.0
Assembly Version: 1.3.0.0

Bulz.258431 also known as:

Elasticmalicious (high confidence)
MicroWorld-eScanGen:Variant.Bulz.258431
FireEyeGeneric.mg.1a0a5a69bc8f39c5
ALYacGen:Variant.Bulz.258431
CylanceUnsafe
ZillyaTrojan.Kryptik.Win32.2659203
SangforSuspicious.Win32.Save.a
K7AntiVirusTrojan ( 700000121 )
AlibabaBackdoor:MSIL/Bladabindi.d9704504
K7GWTrojan ( 700000121 )
Cybereasonmalicious.9bc8f3
BitDefenderThetaGen:NN.ZemsilF.34212.dm0@a0GnoMm
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of MSIL/Kryptik.ADT
APEXMalicious
Paloaltogeneric.ml
KasperskyHEUR:Backdoor.MSIL.Bladabindi.gen
BitDefenderGen:Variant.Bulz.258431
NANO-AntivirusTrojan.Win32.Bladabindi.iflbxp
AvastWin32:Trojan-gen
TencentMsil.Backdoor.Bladabindi.Dwtm
Ad-AwareGen:Variant.Bulz.258431
EmsisoftGen:Variant.Bulz.258431 (B)
ComodoMalware@#ph6qzulx7mzt
DrWebTrojan.DownLoader35.53224
McAfee-GW-EditionArtemis!Trojan
SophosMal/Generic-S
IkarusBackdoor.MSIL
GDataGen:Variant.Bulz.258431
AviraTR/Dropper.MSIL.Gen
MAXmalware (ai score=85)
MicrosoftTrojan:Win32/Zpevdo.B
CynetMalicious (score: 99)
AhnLab-V3Win-Trojan/MSILKrypt09.Exp
Acronissuspicious
McAfeeArtemis!1A0A5A69BC8F
RisingMalware.Obfus/MSIL@AI.100 (RDM.MSIL:rhGIrxD3v7Vb7owUQIvYRA)
YandexTrojan.Kryptik!wgjw2WpEgDo
SentinelOneStatic AI – Malicious PE
MaxSecureTrojan.Malware.300983.susgen
FortinetMSIL/Kryptik.ADT!tr
AVGWin32:Trojan-gen
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Bulz.258431?

Bulz.258431 removal tool
  • 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.

About the author

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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