Ransom

Ransom:Win32/NemptyCrypt.SK!MTB (file analysis)

Malware Removal

The Ransom:Win32/NemptyCrypt.SK!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 Ransom:Win32/NemptyCrypt.SK!MTB virus can do?

  • Executable code extraction
  • Creates RWX memory
  • A process created a hidden window
  • Unconventionial language used in binary resources: Spanish (Guatemala)
  • The binary likely contains encrypted or compressed data.
  • A scripting utility was executed
  • Attempts to stop active services
  • Installs itself for autorun at Windows startup
  • Network activity detected but not expressed in API logs
  • Anomalous binary characteristics

How to determine Ransom:Win32/NemptyCrypt.SK!MTB?


File Info:

crc32: 92348B80
md5: 70cea331ef9e3cdc9a7fc63afb61ec48
name: 70CEA331EF9E3CDC9A7FC63AFB61EC48.mlw
sha1: 843c5512bac3d50da64606495c668d51842ea4fb
sha256: 011d701372501c4c08195a0222943e6eea09a2e3074bb65bb90cfa5fe1919e42
sha512: bf47ed72b0e4e3827389b15038935e4c8e6dda15e9a5ec667d101aecf010a70cca83f59cd28276f75dc60cefa61c37592ab5835d490141719a6921e5fa619122
ssdeep: 3072:UzbDmLx0wtW+Ia7qBcUkPqALmV2aZn6CLWIxhmPFuvPGEdq0sFHb00LgREY593b:OmLxtWOUkSkmV5V6mlsAC6z3bP92QR
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2019, jwfmvlj
InternalName: fbadbess.exu
FileVersion: 1.0.5.4
ProductVersion: 1.7.6
Translation: 0x0841 0x04c4

Ransom:Win32/NemptyCrypt.SK!MTB also known as:

K7AntiVirusTrojan ( 0056809d1 )
LionicTrojan.Win32.Agent.4!c
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.31734
ClamAVWin.Packed.Generic-9853074-1
CAT-QuickHealTrojan.ZenpakRI.S15546993
ALYacTrojan.Ransom.Sodinokibi
CylanceUnsafe
ZillyaTrojan.Kryptik.Win32.2018878
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/generic.ali2000010
K7GWTrojan ( 005662651 )
Cybereasonmalicious.1ef9e3
CyrenW32/Wacatac.BT.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.HDCU
APEXMalicious
AvastWin32:CoinminerX-gen [Trj]
CynetMalicious (score: 100)
KasperskyHEUR:Backdoor.Win32.Mokes.vho
BitDefenderGen:Heur.Mint.Zard.52
NANO-AntivirusTrojan.Win32.Encoder.hlcsid
MicroWorld-eScanGen:Heur.Mint.Zard.52
TencentWin32.Backdoor.Mokes.Ahfa
Ad-AwareGen:Heur.Mint.Zard.52
SophosMal/Generic-S
ComodoMalware@#3saojeyg6z7no
BitDefenderThetaGen:NN.ZexaF.34236.tq0@am4rHyU
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Emotet.fh
FireEyeGeneric.mg.70cea331ef9e3cdc
EmsisoftGen:Heur.Mint.Zard.52 (B)
SentinelOneStatic AI – Malicious PE
AviraTR/Crypt.Agent.gtvpg
Antiy-AVLTrojan/Generic.ASMalwS.3066695
MicrosoftRansom:Win32/NemptyCrypt.SK!MTB
GDataGen:Heur.Mint.Zard.52
AhnLab-V3Trojan/Win.MalPe.X2065
Acronissuspicious
McAfeePacked-GBE!70CEA331EF9E
MAXmalware (ai score=100)
VBA32BScope.Trojan.Zbot.01439
MalwarebytesTrojan.MalPack.GS
PandaTrj/GdSda.A
RisingTrojan.Generic@ML.100 (RDML:EqGKMm1tADsodjwxviBq6A)
IkarusPacked.Win32.Crypt
MaxSecureTrojan.Malware.74662225.susgen
FortinetW32/GandCrab.G!tr
AVGWin32:CoinminerX-gen [Trj]
Paloaltogeneric.ml

How to remove Ransom:Win32/NemptyCrypt.SK!MTB?

Ransom:Win32/NemptyCrypt.SK!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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