Backdoor:Win32/Small.IR (file analysis)

The Backdoor:Win32/Small.IR 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:Win32/Small.IR virus can do?

Sample contains Overlay data
The binary contains an unknown PE section name indicative of packing
Authenticode signature is invalid

How to determine Backdoor:Win32/Small.IR?


File Info:
name: AC7F76216D0B84049603.mlw
path: /opt/CAPEv2/storage/binaries/97c3f11217d92bf0f85c5bbbc0cae28cdf844edddf7884d988c4010843eaf4ab
crc32: BCE8C0FD
md5: ac7f76216d0b84049603d52b735e2833
sha1: 76d9037781c0daeb4b5218443d12e1e4c5f2408a
sha256: 97c3f11217d92bf0f85c5bbbc0cae28cdf844edddf7884d988c4010843eaf4ab
sha512: 94650fd7c98aff89534a20e6851930eb2e775d0ea9f8ee64cc68ea0848745bd3759b3b62bf7ccca3dc33ae20a235a19122acdbea844f81008203da021508df79
ssdeep: 768:wrGLctww30POw9mKv2oMumjeEgzHI/fCREC3rHvDUXM+GpcS63uHzbQsWGhM1xH5:xch3vwSbax3rHV6+HwsWGhGDK7i
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T18D930CAF27CBB3A1F0411B32743D25FBE7A1CB842B321CD67BD118658903569691E4EE
sha3_384: 6ec35b9d17ce6ea96bb2ffe777d69dd08407a0f5471b1949df1e86cf7b6e1251a3e8a9497a0cf4452c476cc54a3bf03f
ep_bytes: 00000000000000000000000000000000
timestamp: 2006-11-24 22:07:44

Version Info:
0: [No Data]

Backdoor:Win32/Small.IR also known as:

Bkav	W32.AIDetectMalware
Elastic	malicious (high confidence)
MicroWorld-eScan	Gen:Variant.Fugrafa.2889
ClamAV	Win.Trojan.Fugrafa-9733007-0
McAfee	Artemis!AC7F76216D0B
Cylance	unsafe
Zillya	Trojan.Generic.Win32.1699900
Sangfor	Suspicious.Win32.Save.a
Cybereason	malicious.16d0b8
Symantec	ML.Attribute.HighConfidence
APEX	Malicious
Cynet	Malicious (score: 100)
Kaspersky	HEUR:Trojan.Win32.Generic
BitDefender	Gen:Variant.Fugrafa.2889
Avast	Win32:Small-DPU [Trj]
Emsisoft	Gen:Variant.Fugrafa.2889 (B)
VIPRE	Gen:Variant.Fugrafa.2889
McAfee-GW-Edition	BehavesLike.Win32.Generic.nm
FireEye	Generic.mg.ac7f76216d0b8404
Sophos	ML/PE-A
SentinelOne	Static AI – Suspicious PE
Jiangmin	Backdoor/Small.bcb
Antiy-AVL	Trojan[Backdoor]/Win32.Small
Microsoft	Backdoor:Win32/Small.IR
Arcabit	Trojan.Fugrafa.DB49
ZoneAlarm	HEUR:Trojan.Win32.Generic
GData	Gen:Variant.Fugrafa.2889
Google	Detected
ALYac	Gen:Variant.Fugrafa.2889
MAX	malware (ai score=82)
Malwarebytes	Malware.AI.4141921463
Rising	Trojan.Generic@AI.100 (RDML:177wYMk0vLUfvMGDz0f3pA)
Ikarus	Backdoor.Win32.Small
MaxSecure	Trojan.Malware.300983.susgen
Fortinet	W32/Fugrafa.2889!tr
AVG	Win32:Small-DPU [Trj]
DeepInstinct	MALICIOUS
CrowdStrike	win/malicious_confidence_100% (D)

How to remove Backdoor:Win32/Small.IR?

Backdoor:Win32/Small.IR 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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