Win32/Small.NUC removal guide

The Win32/Small.NUC 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.

6-day free trial available.

What Win32/Small.NUC virus can do?

Network activity detected but not expressed in API logs
Anomalous binary characteristics

How to determine Win32/Small.NUC?


File Info:
crc32: 7697502E
md5: d4ecdd9070c47e8248a647033c9ea4d3
name: D4ECDD9070C47E8248A647033C9EA4D3.mlw
sha1: 0f06d292867ffbef88d8f22f3648d618d6bdc551
sha256: 801543860feda44937c78a67e2f54f1d62bd98b050c62b7e16505c00076bcbf0
sha512: 1870b15249f35d7886502b48d464b0bce48dfaeb0e14b229c610df7dbc9bf0f94564492412a0b73e57fb22191b952b057fe3b3bf00610af7e534646d2c4366e9
ssdeep: 384:5fhocvamy38DeB4efeN74m3KHtNHt8reuQMIfx0BT:5WuDeBRWqGqt8reuQMI6l
type: PE32 executable (console) Intel 80386, for MS Windows

Version Info:
0: [No Data]

Win32/Small.NUC also known as:

Lionic	Trojan.Win32.RotorCrypt.4!c
Elastic	malicious (high confidence)
MicroWorld-eScan	Gen:Variant.Ransom.RotorCrypt.8
ALYac	Gen:Variant.Ransom.RotorCrypt.8
Cylance	Unsafe
Alibaba	Trojan:Win32/RotorCrypt.2b3f1e29
Cybereason	malicious.070c47
Cyren	W32/Katusha.I.gen!Eldorado
Symantec	ML.Attribute.HighConfidence
ESET-NOD32	a variant of Win32/Small.NUC
Zoner	Probably Heur.ExeHeaderH
APEX	Malicious
Avast	Win32:Malware-gen
Cynet	Malicious (score: 99)
BitDefender	Gen:Variant.Ransom.RotorCrypt.8
Ad-Aware	Gen:Variant.Ransom.RotorCrypt.8
Sophos	ML/PE-A
Comodo	Malware@#qnpptylp87v5
BitDefenderTheta	Gen:NN.ZexaF.34110.cmW@aazyEmb
McAfee-GW-Edition	Artemis!Trojan
FireEye	Generic.mg.d4ecdd9070c47e82
Emsisoft	Gen:Variant.Ransom.RotorCrypt.8 (B)
Avira	HEUR/AGEN.1108149
GData	Gen:Variant.Ransom.RotorCrypt.8
AhnLab-V3	Malware/Win32.Generic.C3101536
McAfee	Artemis!D4ECDD9070C4
MAX	malware (ai score=100)
VBA32	BScope.Trojan.Tiggre
Panda	Trj/CI.A
Rising	Trojan.Generic@ML.100 (RDML:tHJGhBKziLYF9QZ4mPfX6A)
Yandex	Trojan.GenAsa!Yn5xfP4bBcQ
Ikarus	Trojan.RotorCrypt
MaxSecure	Trojan.Malware.7175203.susgen
Fortinet	W32/Katusha.A!tr
AVG	Win32:Malware-gen
Paloalto	generic.ml

How to remove Win32/Small.NUC?

Win32/Small.NUC 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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