Categories: Trojan

MSIL/TrojanDownloader.Agent.HEF malicious file

The MSIL/TrojanDownloader.Agent.HEF 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/TrojanDownloader.Agent.HEF virus can do?

  • Presents an Authenticode digital signature
  • Dynamic (imported) function loading detected
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Anomalous binary characteristics

How to determine MSIL/TrojanDownloader.Agent.HEF?


File Info:

name: FF57185F1100A1851B53.mlwpath: /opt/CAPEv2/storage/binaries/e497e85a396ba79422abc733cc97ff59ffd99d3c15db92959924d3e15f3b6729crc32: B6471FF9md5: ff57185f1100a1851b53f95ac2201cb4sha1: 0513d80af2363b9857c21f2bff6d9b47c85c3804sha256: e497e85a396ba79422abc733cc97ff59ffd99d3c15db92959924d3e15f3b6729sha512: a5e8d11a6c022020295c79b4f6c15a0909d1676e69f78cf238462aeeb99f4b0934d66c37ace0fb4a7d584feceecbf937e9c97293b1725ed8f8a199c1599d6cecssdeep: 6144:UmA1seGrBR0HeYXJgUpL8SNFDu/O63hGSb/DB5pr0+UTsWkef1XwxQ1dXbAph8cK:CqEemp5bu9TlLfUTdwq13vtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T13BA4F1253A9CBE1CD0982F780431052DAF7E71DE750399CB1ACC46DE6EFA7304992B96sha3_384: 31373a14a2c59bf716584cb0cba79e0111dfdef69b0748e948005e5a5c13464ae482b1b15be506658e076bbeb45be00dep_bytes: ff250020400000000000000000000000timestamp: 2020-05-16 12:42:09

Version Info:

Translation: 0x0000 0x04b0Comments: CompanyName: FileDescription: FileVersion: 1.0.7.9InternalName: IG Stories Downloader.exeLegalCopyright: Copyright © 2020LegalTrademarks: OriginalFilename: IG Stories Downloader.exeProductName: ProductVersion: 1.0.7.9Assembly Version: 1.0.7.9

MSIL/TrojanDownloader.Agent.HEF also known as:

Bkav W32.AIDetectNet.01
MicroWorld-eScan Gen:Variant.Bulz.285394
FireEye Generic.mg.ff57185f1100a185
ALYac Gen:Variant.Bulz.285394
Cylance Unsafe
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Trojan-Downloader ( 005753d21 )
K7GW Trojan-Downloader ( 005753d21 )
Cybereason malicious.f1100a
Cyren W32/Trojan.GLG.gen!Eldorado
Elastic malicious (high confidence)
ESET-NOD32 a variant of MSIL/TrojanDownloader.Agent.HEF
APEX Malicious
Kaspersky HEUR:Trojan.MSIL.Agentb.gen
BitDefender Gen:Variant.Bulz.285394
SUPERAntiSpyware Trojan.Agent/Gen-Bsymem
Avast Win32:DangerousSig [Trj]
Tencent Malware.Win32.Gencirc.11bcb09d
Ad-Aware Gen:Variant.Bulz.285394
Emsisoft Application.Downloader (A)
Zillya Downloader.Agent.Win32.424628
McAfee-GW-Edition GenericRXLJ-PZ!FF57185F1100
Sophos Mal/Generic-S + Troj/DwnLd-AEK
GData Gen:Variant.Bulz.285394
Jiangmin Downloader.MSIL.pdr
Avira TR/Downloader.Gen
MAX malware (ai score=89)
Arcabit Trojan.Bulz.D45AD2
Microsoft Trojan:Win32/Wacatac.B!ml
Cynet Malicious (score: 99)
McAfee GenericRXLJ-PZ!FF57185F1100
Malwarebytes Trojan.Downloader
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.74225041.susgen
Fortinet MSIL/Ursu.4143!tr
AVG Win32:DangerousSig [Trj]

How to remove MSIL/TrojanDownloader.Agent.HEF?

  • 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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