Categories: Backdoor

Backdoor:MSIL/Nanobot!mclg (file analysis)

The Backdoor:MSIL/Nanobot!mclg 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 Backdoor:MSIL/Nanobot!mclg virus can do?

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

How to determine Backdoor:MSIL/Nanobot!mclg?


File Info:

name: B0F432C49C7C5B721C21.mlwpath: /opt/CAPEv2/storage/binaries/661db4c325029f3b5e236d2812ff575e87419791b74af69621ff777de17de348crc32: B1BC3FC6md5: b0f432c49c7c5b721c21ce5da0aa95adsha1: 769a1ca9dc76646b6b8b2237ad0e0823ddb8844fsha256: 661db4c325029f3b5e236d2812ff575e87419791b74af69621ff777de17de348sha512: 34a32bcaf87e43b0e3cd49f8e3de9aa964e392c6a19b46534a0e56e5c4df0b4ad4a7f07437f3f2510f83d129e21cf855edacf1d14d81b456b64b1c968a197067ssdeep: 768:mxiJxxXcc3PZR8v3byDFlDWUFuWj+98D5beukQA7M9/qFZR1hEgtqy5:zccxRAclDWz98JfkT7M9Q5Uy5type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T17D0400EACB69C27DC5472770D4F0F5F08249ADACC1818E0B92647F2B73B25862997C97sha3_384: 6979d2348a43107324e2b789965aad0b440a714063f7b0b9a6a62398bf23f71be7653e71d1667ff357bc2e3d6d19d9e3ep_bytes: ff250020400000000000000000000000timestamp: 2022-05-09 23:35:19

Version Info:

Translation: 0x0000 0x04b0Comments: MEGAsyncCompanyName: MEGA LimitedFileDescription: MEGAsyncFileVersion: 4.6.1.0InternalName: Udmmwx.exeLegalCopyright: MEGA Limited 2021LegalTrademarks: OriginalFilename: Udmmwx.exeProductName: MEGAsyncProductVersion: 4.6.1.0Assembly Version: 4.6.1.0

Backdoor:MSIL/Nanobot!mclg also known as:

Bkav W32.AIDetectNet.01
Lionic Trojan.MSIL.Seraph.a!c
Elastic malicious (high confidence)
DrWeb Trojan.DownloaderNET.378
MicroWorld-eScan Trojan.GenericKD.50285128
FireEye Generic.mg.b0f432c49c7c5b72
CAT-QuickHeal Trojan.YakbeexMSIL.ZZ4
McAfee RDN/Sabsik
Cylance Unsafe
VIPRE Trojan.GenericKD.50285128
Sangfor Backdoor.Msil.Nanobot.V7xn
K7AntiVirus Trojan-Downloader ( 00592bc11 )
Alibaba Backdoor:MSIL/NanoBot.aedbec6c
K7GW Trojan-Downloader ( 00592bc11 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta Gen:NN.ZemsilF.34582.lm0@a8M7nsj
VirIT Trojan.Win32.MSIL.DOJ
Cyren W32/MSIL_Kryptik.GRB.gen!Eldorado
Symantec MSIL.Downloader!gen7
ESET-NOD32 MSIL/TrojanDownloader.Agent.LSV
TrendMicro-HouseCall Backdoor.MSIL.NANOBOT.AFFWWS
Paloalto generic.ml
Kaspersky HEUR:Backdoor.MSIL.NanoBot.gen
BitDefender Trojan.GenericKD.50285128
Avast Win32:PWSX-gen [Trj]
Rising Backdoor.NanoBot!8.28C (KTSE)
Ad-Aware Trojan.GenericKD.50285128
Comodo Malware@#23j0v00l11mxd
Zillya Downloader.Agent.Win32.469276
TrendMicro Backdoor.MSIL.NANOBOT.AFFWWS
McAfee-GW-Edition RDN/Sabsik
SentinelOne Static AI – Suspicious PE
Trapmine malicious.moderate.ml.score
Emsisoft Trojan.GenericKD.50285128 (B)
Ikarus Trojan-Downloader.MSIL.Agent
GData MSIL.Trojan-Downloader.Agent.BGU
Jiangmin Backdoor.MSIL.fptv
Webroot W32.Trojan.Gen
Avira TR/Downloader.MSIL.vfmhg
Antiy-AVL Trojan/Generic.ASMalwS.3CA0
ViRobot Trojan.Win32.Z.Agent.186880.TX
Microsoft Backdoor:MSIL/Nanobot!mclg
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win.Generic.C5121689
VBA32 TrojanDownloader.Smoke
ALYac Trojan.GenericKD.50285128
TACHYON Backdoor/W32.DN-NanoBot.186880
Malwarebytes Trojan.SmokeLoader
APEX Malicious
Tencent Msil.Trojan-downloader.Agent.Pgcq
MAX malware (ai score=100)
MaxSecure Trojan.Malware.73691366.susgen
Fortinet MSIL/Agent.95AD!tr
AVG Win32:PWSX-gen [Trj]
Panda Trj/Chgt.AA

How to remove Backdoor:MSIL/Nanobot!mclg?

  • 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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