Categories: Backdoor

Should I remove “Backdoor:MSIL/Nanocore.SS!MTB”?

The Backdoor:MSIL/Nanocore.SS!MTB 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/Nanocore.SS!MTB virus can do?

  • Injection (inter-process)
  • Injection with CreateRemoteThread in a remote process
  • Uses Windows utilities for basic functionality
  • A potential decoy document was displayed to the user
  • Network activity detected but not expressed in API logs

How to determine Backdoor:MSIL/Nanocore.SS!MTB?


File Info:

crc32: CD1BA56Dmd5: 2bbfcbe9e174c520046a6258c174461bname: upload_filesha1: b145f8ff52540d6e2e50f0184189c8a821723a78sha256: a1166a4eedc2f9791bbd13dfe16ac51772c679d0d59470b51e63db8a7a7be6bfsha512: 7952eaaac97531be3959383d2c346d2a3d2be5446994899fe4831f6294350fad3469821da51a3c9994ce03c79783501be5ae6e0ce7373c56db1b7e1add3269b2ssdeep: 6144:LwcVyMj6/OYQK9Fr9+IEdsUcAZ+SF0ErhujyMAArgBVdVq6:EKj6/OfK9FZ+ddsUPZayujzAArg5htype: Microsoft Cabinet archive data, 344033 bytes, 1 file

Version Info:

0: [No Data]

Backdoor:MSIL/Nanocore.SS!MTB also known as:

MicroWorld-eScan Gen:Variant.MSILPerseus.237210
ALYac Gen:Variant.MSILPerseus.237210
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.ZIP.Perseus.4!c
Sangfor Malware
K7GW Trojan ( 00570d151 )
TrendMicro TROJ_GEN.R05AC0PJE20
Cyren W32/MSIL_Kryptik.BTY.gen!Eldorado
Symantec Trojan.Gen.NPE
Avast Win32:DangerousSig [Trj]
Kaspersky HEUR:Trojan.MSIL.Scarsi.gen
BitDefender Gen:Variant.MSILPerseus.237210
Tencent Win32.Trojan.Inject.Auto
Sophos Troj/MSILIn-ACD
F-Secure Trojan.TR/Kryptik.pnald
DrWeb Trojan.Inject4.3177
Invincea Mal/Generic-S + Troj/MSILIn-ACD
McAfee-GW-Edition PWS-FCRN!1273B5C2713D
FireEye Gen:Variant.MSILPerseus.237210
Emsisoft Gen:Variant.MSILPerseus.237210 (B)
Ikarus Trojan.Inject
Jiangmin Trojan.MSIL.qxjc
Avira TR/Kryptik.pnald
Microsoft Backdoor:MSIL/Nanocore.SS!MTB
Arcabit Trojan.MSILPerseus.D39E9A
ZoneAlarm HEUR:Trojan.MSIL.Scarsi.gen
GData Gen:Variant.MSILPerseus.237210
Cynet Malicious (score: 85)
AhnLab-V3 Trojan/Win32.MassLogger.R352656
McAfee Artemis!1273B5C2713D
MAX malware (ai score=82)
VBA32 suspected of Win32.PhishingPE.Heur
ESET-NOD32 a variant of MSIL/GenKryptik.ERWX
SentinelOne DFI – Malicious Archive
Fortinet MSIL/GenKryptik.ERWX!tr
AVG Win32:DangerousSig [Trj]
Qihoo-360 Win32/Trojan.ae8

How to remove Backdoor:MSIL/Nanocore.SS!MTB?

  • 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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