Backdoor

Backdoor:MSIL/Nanocore.S!MTB removal guide

Malware Removal

The Backdoor:MSIL/Nanocore.S!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.

GridinSoft Anti-Malware

Gridinsoft Anti-Malware

Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Backdoor:MSIL/Nanocore.S!MTB virus can do?

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Reads data out of its own binary image
  • The binary likely contains encrypted or compressed data.
  • Attempts to remove evidence of file being downloaded from the Internet
  • Installs itself for autorun at Windows startup
  • Exhibits behavior characteristic of Nanocore RAT
  • Creates a copy of itself
  • Collects information to fingerprint the system

Related domains:

z.whorecord.xyz
a.tomx.xyz

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


File Info:

crc32: 1FC630D6
md5: e6fb34f2dc8880f119153fa24a7be89f
name: delbb.exe
sha1: d92bf61765dc35d4d4434e6aed62c1eedc2f172f
sha256: 566776ea295f8ff2dca9ca169ff0799eb0514732970f474b422168cc93076030
sha512: 38e50a75c5deb109cc958a02e0795a3505147f2a1b17a8270533d773cb4738b87ad0517ac5688e3e7be7551575ac125c4a4bbcb5a5b2cba083d58fafe6f7e50a
ssdeep: 3072:wzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIOb6TIrJVyPRjUj1b0p/EBBZZC:wLV6Bta6dtJmakIM55rCRIIABWHv7N
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

0: [No Data]

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

BkavW32.DropperFraudropK.Trojan
DrWebTrojan.Nanocore.23
MicroWorld-eScanBackdoor.MSIL.Agent.GD
CAT-QuickHealTrojan.Orbus.C3
Qihoo-360Generic/Trojan.f3a
McAfeeTrojan-FICC!E6FB34F2DC88
CylanceUnsafe
VIPRETrojan.MSIL.NanoCore.B (fs)
AegisLabTrojan.Win32.Generic.mhUN
SangforMalware
K7AntiVirusTrojan ( 700000121 )
BitDefenderBackdoor.MSIL.Agent.GD
K7GWTrojan ( 700000121 )
Cybereasonmalicious.2dc888
TrendMicroBKDR_NOANCOOE.SM
BitDefenderThetaGen:NN.ZemsilF.34104.mmW@aiHsrqh
F-ProtW32/NanoCore.C.gen!Eldorado
APEXMalicious
Paloaltogeneric.ml
ClamAVWin.Trojan.Nanocore-5
GDataMSIL.Backdoor.Nancat.A
KasperskyTrojan.MSIL.Agent.fpar
AlibabaMalware:Win32/Dorpal.ali1000029
NANO-AntivirusTrojan.Win32.Dwn.edxxmu
ViRobotBackdoor.Win32.NanoCore.Gen.A
AvastMSIL:NanoCore-B [Trj]
TencentMsil.Trojan.Agent.Anfv
Ad-AwareBackdoor.MSIL.Agent.GD
EmsisoftTrojan.NanoCore (A)
ComodoBackdoor.MSIL.Noancooe.JDE@5s4u9t
F-SecureTrojan.TR/Dropper.MSIL.Gen7
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.PUPXBZ.dc
Trapminemalicious.high.ml.score
FireEyeGeneric.mg.e6fb34f2dc8880f1
SophosTroj/NanoCor-BT
IkarusBackdoor.Rat.Nanocore
CyrenW32/NanoCore.C.gen!Eldorado
JiangminBackdoor.Generic.zwu
AviraTR/Dropper.MSIL.Gen7
MAXmalware (ai score=100)
Antiy-AVLTrojan[Backdoor]/Win32.AGeneric
Endgamemalicious (high confidence)
ArcabitBackdoor.MSIL.Agent.GD
SUPERAntiSpywareTrojan.Agent/Gen-Backdoor
ZoneAlarmTrojan.MSIL.Agent.fpar
MicrosoftBackdoor:MSIL/Nanocore.S!MTB
AhnLab-V3Win-Trojan/Nanocore.Exp
Acronissuspicious
VBA32TScope.Trojan.MSIL
ALYacBackdoor.MSIL.Agent.GD
TACHYONTrojan/W32.DN-Agent.207360.AF
MalwarebytesBackdoor.NanoCore
ZonerTrojan.Win32.48280
ESET-NOD32MSIL/NanoCore.E
TrendMicro-HouseCallBKDR_NOANCOOE.SM
RisingBackdoor.NanoCore!1.B6F9 (CLOUD)
SentinelOneDFI – Malicious PE
eGambitTrojan.Generic
FortinetW32/Generic.AC.A0C!tr
AVGMSIL:NanoCore-B [Trj]
PandaBck/Agent.KNM
CrowdStrikewin/malicious_confidence_100% (W)
MaxSecureTrojan.Malware.300983.susgen

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

Backdoor:MSIL/Nanocore.S!MTB removal tool
  • 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.

About the author

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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