Categories: Trojan

MSIL/TrojanDownloader.Agent.MCJ removal instruction

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

  • Dynamic (imported) function loading detected
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Binary compilation timestomping detected

How to determine MSIL/TrojanDownloader.Agent.MCJ?


File Info:

name: 47AB52EFFEB59FDF9EC7.mlwpath: /opt/CAPEv2/storage/binaries/85a75ccdfc00ea020c7c7b464ffc30b01a834ce00ef217cbf3e32b54a371d282crc32: 5B54F430md5: 47ab52effeb59fdf9ec79379a8ccd15esha1: cdedb0747c9c440704deae1f7016dffd01490c93sha256: 85a75ccdfc00ea020c7c7b464ffc30b01a834ce00ef217cbf3e32b54a371d282sha512: 17b240b42f2fd54c306516ca83427d8c65549598fe836a0f270901944ae260d6af6ade6ab73d9d3904fea01cf4d89c14ee64a9570e2724bde82fe0b58602fe5dssdeep: 24576:KI55m+4iy7Mj2FjwmF6zdq9E4nr5B3d7n7pYo82IWA2Y:KkaC2hABGE4nLd7plIBdtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T17E45230AAA346261DC76C8F2144DC6F610B15ABFE28D21AE70D5FF1D24B36E71036DE6sha3_384: 78aa9485f5bb8763e320fed9311671ea755057ca6e198ff7ba0c474903acfec3e4b574502c51b8e07b1b5f69f3f5fc3eep_bytes: ff250020400000000000000000000000timestamp: 2095-03-18 21:12:23

Version Info:

Translation: 0x0000 0x04b0Comments: CompanyName: Microsoft CorporationFileDescription: FileVersion: 2.11.15.0InternalName: imageSize.exeLegalCopyright: LegalTrademarks: OriginalFilename: imageSize.exeProductName: Microsoft ReaderProductVersion: 2.11.15.0Assembly Version: 2.11.15.0

MSIL/TrojanDownloader.Agent.MCJ also known as:

Bkav W32.AIDetectNet.01
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.39771776
FireEye Generic.mg.47ab52effeb59fdf
ALYac Trojan.GenericKD.39771776
Cylance Unsafe
Zillya Downloader.Agent.Win32.477431
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Trojan-Downloader ( 005942691 )
BitDefender Trojan.GenericKD.39771776
K7GW Trojan-Downloader ( 005942691 )
Cybereason malicious.47c9c4
Cyren W32/ABRisk.SRWM-0536
Symantec MSIL.Downloader!gen7
ESET-NOD32 a variant of MSIL/TrojanDownloader.Agent.MCJ
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan-Downloader.MSIL.Seraph.gen
Alibaba TrojanDownloader:MSIL/Seraph.13ada8cb
Rising Downloader.Agent!8.B23 (CLOUD)
Ad-Aware Trojan.GenericKD.39771776
Sophos Mal/Generic-S
VIPRE Trojan.GenericKD.39771776
TrendMicro TROJ_GEN.R002C0WFD22
McAfee-GW-Edition BehavesLike.Win32.Generic.tc
Trapmine malicious.moderate.ml.score
Emsisoft Trojan.GenericKD.39771776 (B)
Ikarus Trojan-Downloader.MSIL.Agent
Webroot W32.Trojan.GenKD
Avira TR/Dldr.Agent.uodla
MAX malware (ai score=86)
Microsoft Trojan:Win32/Wacatac.B!ml
GData Trojan.GenericKD.39771776
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win.Generic.C5168399
Acronis suspicious
McAfee Artemis!47AB52EFFEB5
Malwarebytes Trojan.MalPack.GS
Panda Trj/Chgt.AB
TrendMicro-HouseCall TROJ_GEN.R002C0WFD22
Tencent Msil.Trojan-downloader.Agent.Pegh
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.74570710.susgen
Fortinet MSIL/Agent.JDM!tr
BitDefenderTheta Gen:NN.ZemsilF.34742.jn0@amnO@lo
AVG Win32:RATX-gen [Trj]
Avast Win32:RATX-gen [Trj]
CrowdStrike win/malicious_confidence_100% (W)

How to remove MSIL/TrojanDownloader.Agent.MCJ?

  • 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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