Categories: Worm

Worm:Win32/Autorun.YI malicious file

The Worm:Win32/Autorun.YI 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 Worm:Win32/Autorun.YI virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Authenticode signature is invalid
  • Behavioural detection: Injection (inter-process)
  • CAPE detected the embedded win api malware family
  • Anomalous binary characteristics
  • Attempts to modify Explorer settings to prevent hidden files from being displayed
  • Yara detections observed in process dumps, payloads or dropped files

How to determine Worm:Win32/Autorun.YI?


File Info:

name: 511F222B5C61B6BD606F.mlwpath: /opt/CAPEv2/storage/binaries/05ad185a7a003c8b8cead14de19548014506ba877988814aaec15cdf3db00aaccrc32: 3F812C7Cmd5: 511f222b5c61b6bd606f025cd483a267sha1: d8f6833ef5c570edf83ce9a42e32824a83f0d3f3sha256: 05ad185a7a003c8b8cead14de19548014506ba877988814aaec15cdf3db00aacsha512: 4c1cba6b86989c6d6dd5526880cb8ff7995392778881b56a34f08706dea95ae24166dde44c620dfb32be2365c8769a41d66bc4155c94d9f908cfb4f67bca8d4essdeep: 1536:0nR3Eu9dO/p15Bx8pEttgdO/mXpgWXOJgQmmogDcMH5fCVsJVafuegWXAi+oX9tT:aR3EuXOB15Bx8pEttgdO/mXpgWXOJgQytype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1077330B9FAC75806E48405BE175BC1D11263384F2D47A69A13AF3FEF1C04E6A4D29B27sha3_384: a9ffc8c984fd1aa517f6b1299ab614112fbf7ec5003a72cf62e2a3256aabeef518eaa5bb65898b4b6734acfc639d4531ep_bytes: 6890124000e8f0ffffff000000000000timestamp: 2010-02-25 15:39:39

Version Info:

Translation: 0x0409 0x04b0ProductName: AunhWyqmFileVersion: 3.72ProductVersion: 3.72InternalName: AunhWyqmOriginalFilename: AunhWyqm.exe

Worm:Win32/Autorun.YI also known as:

Bkav W32.FamVT.VBNA.A.Worm
Lionic Worm.Win32.VBNA.lJjC
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Trojan.Chinky.2
ClamAV Html.Trojan.VBChinky-2
FireEye Generic.mg.511f222b5c61b6bd
CAT-QuickHeal Trojan.Vobfus.gen
Skyhigh BehavesLike.Win32.VBObfus.lm
McAfee VBObfus
Cylance unsafe
Zillya Worm.VBNA.Win32.45468
Sangfor Suspicious.Win32.Save.vb
K7AntiVirus Trojan ( f1000d031 )
Alibaba Worm:Win32/Vobfus.3c30a59a
K7GW Trojan ( f1000d031 )
CrowdStrike win/malicious_confidence_100% (W)
Arcabit Trojan.Chinky.2
BitDefenderTheta AI:Packer.FFD764AD20
VirIT Worm.Win32.VBNA.A
Symantec W32.Changeup
ESET-NOD32 a variant of Win32/AutoRun.VB.MC
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Worm.Win32.Vobfus.exjt
BitDefender Gen:Trojan.Chinky.2
NANO-Antivirus Trojan.Win32.Chinky.hlopyc
Avast Win32:AutoRun-BGR [Wrm]
Tencent Worm.Win32.VBna.e
TACHYON Worm/W32.Vobfus.78848
Emsisoft Gen:Trojan.Chinky.2 (B)
Baidu Win32.Worm.VBNA.a
F-Secure Trojan.TR/Chinky.G
DrWeb Win32.HLLW.VBNA.based
VIPRE Gen:Trojan.Chinky.2
TrendMicro WORM_VBNA.SM
Trapmine malicious.moderate.ml.score
Sophos W32/Autorun-BBS
SentinelOne Static AI – Malicious PE
Webroot W32.Autorun.Gen
Google Detected
Avira TR/Chinky.G
Antiy-AVL Worm/Win32.Vobfus
Kingsoft malware.kb.a.1000
Xcitium TrojWare.Win32.Chinky.K_20@1p6oe1
Microsoft Worm:Win32/Autorun.YI
ZoneAlarm Worm.Win32.Vobfus.exjt
GData Gen:Trojan.Chinky.2
Varist W32/Vobfus.D.gen!Eldorado
AhnLab-V3 Win32/Vbna3.worm.Gen
Acronis suspicious
VBA32 Trojan.VB.01072
ALYac Gen:Trojan.Chinky.2
MAX malware (ai score=100)
Malwarebytes Generic.Malware.AI.DDS
Panda W32/Vobfus.CP.worm
TrendMicro-HouseCall WORM_VBNA.SM
Rising Trojan.Autorun!1.DA78 (CLASSIC)
Yandex Trojan.GenAsa!DHoP9oN5zVQ
Ikarus Worm.Win32.VBNA
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/VBObfus.BDBD!tr
AVG Win32:AutoRun-BGR [Wrm]
Cybereason malicious.ef5c57
DeepInstinct MALICIOUS

How to remove Worm:Win32/Autorun.YI?

  • 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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Paul Valéry

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