Categories: Malware

MSILPerseus.203335 (B) malicious file

The MSILPerseus.203335 (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 MSILPerseus.203335 (B) virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Creates RWX memory
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid

How to determine MSILPerseus.203335 (B)?


File Info:

name: DDA676233A24ED4ECE4E.mlwpath: /opt/CAPEv2/storage/binaries/afa9ab0429a7b75eebc8567f5eb94a0d90a08a519b4f749f6d2e7ad9f5483c9dcrc32: ED3E8F96md5: dda676233a24ed4ece4e05a0a239db9csha1: 18011da7febaedf9f9941c1beb1260bce9c49631sha256: afa9ab0429a7b75eebc8567f5eb94a0d90a08a519b4f749f6d2e7ad9f5483c9dsha512: 527cbe91cc27b189c6d9fac9df447b55882b25d523a0a9eb5fb562c6240eff73a1c8f20c5be75ef4141f252165d85de324cc53bd4f6414c61a2d188812f6c2fbssdeep: 98304:pwlXbHd5zpwTzgItHdMZB5JgVVPr/hmb:ilXPK3GJ0Dgtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1D4F5338D75FB9297D3D1063890E603BE633C64203962776B74C41CEDBBA9BCDA25C291sha3_384: 1c042b22c6116a2fb2021230d01cda39589274e0cd9bd69bd9e2cb6798ab7105549a9095a2067b4559d7224ffd96780fep_bytes: ff250020400000000000000000000000timestamp: 2021-04-21 22:47:19

Version Info:

Translation: 0x0000 0x04b0Comments: Copyright © Microsoft 2021CompanyName: Copyright © Microsoft 2021FileDescription: Windows LoaderFileVersion: 2.2.2.2InternalName: Windows Loader.exeLegalCopyright: Copyright © Microsoft 2021LegalTrademarks: Windows LoaderOriginalFilename: Windows Loader.exeProductName: Windows LoaderProductVersion: 2.2.2.2Assembly Version: 2.2.2.2

MSILPerseus.203335 (B) also known as:

Lionic Trojan.Win32.Perseus.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.MSILPerseus.203335
FireEye Generic.mg.dda676233a24ed4e
McAfee GenericRXAA-FA!DDA676233A24
Cylance Unsafe
Sangfor Suspicious.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Backdoor:MSIL/Zegost.76430c7c
K7GW Trojan ( 004de9b41 )
K7AntiVirus Trojan ( 004de9b41 )
BitDefenderTheta Gen:NN.ZemsilF.34182.kp0@aG60wI
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/TrojanDropper.Agent.CGN
APEX Malicious
Paloalto generic.ml
Cynet Malicious (score: 100)
Kaspersky HEUR:Backdoor.MSIL.Zegost.gen
BitDefender Gen:Variant.MSILPerseus.203335
Avast Win32:DropperX-gen [Drp]
Tencent Msil.Backdoor.Zegost.Wvas
Emsisoft Gen:Variant.MSILPerseus.203335 (B)
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Artemis!Trojan
Sophos Mal/Generic-S
SentinelOne Static AI – Malicious PE
Jiangmin Backdoor.MSIL.fija
Avira TR/Dropper.Gen
MAX malware (ai score=86)
Antiy-AVL Trojan/Generic.ASMalwS.335176C
Microsoft Backdoor:Win32/Bladabindi!ml
GData Gen:Variant.MSILPerseus.203335
AhnLab-V3 Malware/Win32.RL_Generic.C3613626
VBA32 TScope.Trojan.MSIL
ALYac Gen:Variant.MSILPerseus.203335
Malwarebytes Backdoor.Farfli
Rising Trojan.Generic/MSIL@AI.90 (RDM.MSIL:VL7ayfEVHHQUY3kx8XkjaA)
Yandex Trojan.DR.Agent!JptluXt2CMY
Ikarus Trojan-Dropper.MSIL.Agent
eGambit Unsafe.AI_Score_99%
Fortinet MSIL/Agent.CGN!tr
AVG Win32:DropperX-gen [Drp]
Cybereason malicious.33a24e
Panda Trj/GdSda.A
MaxSecure Trojan.Malware.73796429.susgen

How to remove MSILPerseus.203335 (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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