Categories: Malware

What is “MSIL/BadJoke.AAY”?

The MSIL/BadJoke.AAY 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 MSIL/BadJoke.AAY virus can do?

  • Dynamic (imported) function loading detected
  • CAPE extracted potentially suspicious content
  • Authenticode signature is invalid
  • Binary compilation timestomping detected

How to determine MSIL/BadJoke.AAY?


File Info:

name: 0287178DF8FBAB824197.mlwpath: /opt/CAPEv2/storage/binaries/61020c8928b94c5751a2eb7078ccde5e5c7a56e4173e1f6cd60122ac394b0b70crc32: 3FE2F17Dmd5: 0287178df8fbab824197d582fc6d8f62sha1: 5c6b98214e2fb39153d7a873c13af17f6abd6849sha256: 61020c8928b94c5751a2eb7078ccde5e5c7a56e4173e1f6cd60122ac394b0b70sha512: 548a1423e0d1e224bda7658cf76ef77f2ef3af3c02a56568acaa652f9bdb1559a33082f7f87e50fe9f92103c6348495eb60952d4bc44efd47f7d0e0afa35e12fssdeep: 3072:AqjrSvITBapUCELy/QLj9RLM+TTNyYysRVWC:AYSCCELbLMENssRAtype: PE32 executable (console) Intel 80386, for MS Windowstlsh: T1D6A3AF223CCA5460E24ACCFE727600C662EAEC562BD97E7A1509773F487E455834EB3Dsha3_384: 4169f77dad2e716e449d5ddab8b00b24e4c55f125cffd00319e5d7eed9d9a2cfcaea7ea550129ae8ea10ba51489d6bc5ep_bytes: ff250020400000000000000000000000timestamp: 2095-02-12 22:52:49

Version Info:

Translation: 0x0000 0x04b0Comments: Braten feet picCompanyName: BratenwurstFileDescription: BratenFileVersion: 1.0.0.0InternalName: Braten.exeLegalCopyright: Copyright © 2021LegalTrademarks: TmOriginalFilename: Braten.exeProductName: ConsoleApp2ProductVersion: 1.0.0.0Assembly Version: 1.0.0.0

MSIL/BadJoke.AAY also known as:

Lionic Trojan.MSIL.Witch.4!c
MicroWorld-eScan Trojan.GenericKD.38171461
FireEye Trojan.GenericKD.38171461
ALYac Trojan.GenericKD.38171461
Cylance Unsafe
K7AntiVirus Trojan ( 0058b5e91 )
BitDefenderTheta Gen:NN.ZemsilF.34062.gm0@aCwEoZi
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/BadJoke.AAY
Paloalto generic.ml
Cynet Malicious (score: 99)
Kaspersky HEUR:Trojan.MSIL.Witch.gen
BitDefender Trojan.GenericKD.38171461
Avast Win32:TrojanX-gen [Trj]
Ad-Aware Trojan.GenericKD.38171461
Emsisoft Trojan.GenericKD.38171461 (B)
TrendMicro TROJ_GEN.R002C0WL421
McAfee-GW-Edition Artemis
Sophos Mal/Generic-S
Ikarus Trojan.SuspectCRC
GData Trojan.GenericKD.38171461
Avira TR/Redcap.iaxml
Microsoft Trojan:Win32/Wacatac.B!ml
McAfee Artemis!0287178DF8FB
MAX malware (ai score=86)
APEX Malicious
SentinelOne Static AI – Suspicious PE
Fortinet PossibleThreat
AVG Win32:TrojanX-gen [Trj]
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_60% (W)

How to remove MSIL/BadJoke.AAY?

  • 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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