Categories: Malware

About “Ursu.454433 (B)” infection

The Ursu.454433 (B) 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 Ursu.454433 (B) 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 contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Created a process from a suspicious location
  • Creates known Njrat/Bladabindi RAT registry keys

How to determine Ursu.454433 (B)?


File Info:

name: 690F8C782C81E3CBEBBD.mlwpath: /opt/CAPEv2/storage/binaries/01f3abdbe628a8dfe6d148c46b85cd64c7251b6f7cac0bf54a9f319cc72cadf2crc32: BA18DB8Dmd5: 690f8c782c81e3cbebbd0899782cd52esha1: 7f59476988c95589fcf64b98ed0b342bba9976b8sha256: 01f3abdbe628a8dfe6d148c46b85cd64c7251b6f7cac0bf54a9f319cc72cadf2sha512: a489c14663e0294fe67e92a4af3a6dfdc8a68db541f8b12d77b110987bc1386f2ca56782dfb67ad0984413086d632e22d141249e1a6dbf0d12fb3e4e0ae1c56fssdeep: 3072:oVw0Qbak3QrVJ5L9pEiFZtw/xx9j1Vap/tfxHs:nakaiWi/xx9j1MVptype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T100E326352396051CCC6C497305DAC3E206B5E685233B9BDB2B1936784CB237EB9796CBsha3_384: 35de6baac1daa22b13174095ffa6d6a1b12ab20d905639495f51dd1e27b616334ef51ffe5e118bf18bc10d6c9164319bep_bytes: ff250020400000000000000000000000timestamp: 2022-07-14 22:14:46

Version Info:

Translation: 0x0000 0x04b0Comments: Windows Task ManagerCompanyName: Microsoft CorporationFileDescription: Windows Task ManagerFileVersion: 6.1.7601.17514InternalName: Windows Task Manager.exeLegalCopyright: © Microsoft Corporation. All rights reserved.LegalTrademarks: OriginalFilename: Windows Task Manager.exeProductName: Microsoft® Windows® Operating SystemProductVersion: 6.1.7601.17514Assembly Version: 6.1.7601.17514

Ursu.454433 (B) also known as:

Bkav W32.AIDetectNet.01
DrWeb BackDoor.Bladabindi.13678
MicroWorld-eScan Gen:Variant.Ursu.454433
FireEye Generic.mg.690f8c782c81e3cb
ALYac Gen:Variant.Ursu.454433
Cylance Unsafe
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Trojan ( 0055408e1 )
K7GW Trojan ( 0055408e1 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta Gen:NN.ZemsilF.34786.jq0@aaFmEym
Symantec ML.Attribute.HighConfidence
Elastic malicious (high confidence)
ESET-NOD32 a variant of MSIL/Kryptik.SJV
Kaspersky HEUR:Backdoor.MSIL.Bladabindi.gen
BitDefender Gen:Variant.Ursu.454433
Avast Win32:Trojan-gen
Ad-Aware Gen:Variant.Ursu.454433
Emsisoft Gen:Variant.Ursu.454433 (B)
VIPRE Gen:Variant.Ursu.454433
McAfee-GW-Edition GenericRXKL-MD!690F8C782C81
Sophos Mal/Generic-S
Ikarus Trojan.MSIL.Crypt
GData Gen:Variant.Ursu.454433
Avira TR/Dropper.Gen
ZoneAlarm HEUR:Backdoor.MSIL.Bladabindi.gen
Microsoft Trojan:Win32/Wacatac.B!ml
Cynet Malicious (score: 100)
Acronis suspicious
McAfee GenericRXKL-MD!690F8C782C81
MAX malware (ai score=84)
APEX Malicious
Rising Backdoor.Bladabindi!8.B1F (CLOUD)
SentinelOne Static AI – Malicious PE
Fortinet PossibleThreat
AVG Win32:Trojan-gen
Cybereason malicious.82c81e

How to remove Ursu.454433 (B)?

  • 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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