Categories: Malware

How to remove “Win32:AutoRun-COJ [Trj]”?

The Win32:AutoRun-COJ [Trj] 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 Win32:AutoRun-COJ [Trj] 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 pe malware family
  • Attempts to disable Windows Auto Updates
  • 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 Win32:AutoRun-COJ [Trj]?


File Info:

name: E23EAAEE51C3A91AB62D.mlwpath: /opt/CAPEv2/storage/binaries/3ed67b63cb3bd53bc51152c5f5d69ef21b4f1dd218d7175e2953a9a0221f4201crc32: 2AE7ED31md5: e23eaaee51c3a91ab62d50550633d7b7sha1: 56984cc74344b5a8e3f8e70bfe1045db8debee43sha256: 3ed67b63cb3bd53bc51152c5f5d69ef21b4f1dd218d7175e2953a9a0221f4201sha512: d9948b106ed8379d3d0f78ad4b86f0248ce84a9d739589c6fdc51ab6f6876599af39013c68bc552c6c0815e7297f77ab2f57424337d4e2e70fa7f6c52261fd96ssdeep: 6144:1jGDh4jLt4NVcWgyGELwXiS8T+bbhn7aRjS5ZgBbT:lGWntWyD1LiS8lS5ZItype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T15D3494157280F73ED925C6F43D5A8390A43AED3215A5AC07F6D26F2A73B1D97E221323sha3_384: 07e132b82afab94318ffce5a0d015f499bae4a1a1a486f372c976bc734ba6ab2b9b21f964368ca0d3c67fc1e133f7391ep_bytes: 685c414000e8f0ffffff000000000000timestamp: 2012-01-18 19:54:22

Version Info:

Translation: 0x0409 0x04b0ProductName: CAixqyRSFileVersion: 1.00ProductVersion: 1.00InternalName: zmnBfjkhOriginalFilename: zmnBfjkh.exe

Win32:AutoRun-COJ [Trj] also known as:

Bkav W32.AIDetectMalware
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Chinky.7
FireEye Generic.mg.e23eaaee51c3a91a
CAT-QuickHeal Trojan.Beebone.D
Skyhigh BehavesLike.Win32.VBObfus.dm
ALYac Gen:Variant.Chinky.7
Cylance unsafe
Zillya Worm.Vobfus.Win32.1522812
Sangfor Suspicious.Win32.Save.vb
Alibaba Malware:Win32/km_2ff5.None
K7GW EmailWorm ( 0054d10f1 )
K7AntiVirus EmailWorm ( 0054d10f1 )
BitDefenderTheta Gen:NN.ZevbaF.36802.om0@a4L7Kyoi
VirIT Trojan.Win32.Zyx.HJ
Symantec W32.Changeup
ESET-NOD32 Win32/Pronny.AC
APEX Malicious
TrendMicro-HouseCall WORM_VOBFUS.SMAB
ClamAV Win.Trojan.Vobfus-30
Kaspersky Worm.Win32.Vobfus.dezg
BitDefender Gen:Variant.Chinky.7
NANO-Antivirus Trojan.Win32.Diple.covlai
Avast Win32:AutoRun-COJ [Trj]
Tencent Worm.Win32.Vobfus.kad
TACHYON Worm/W32.Vobfus.233472.C
Sophos W32/SillyFDC-GX
Baidu Win32.Worm.Pronny.d
F-Secure Trojan.TR/VB.Agent.auoa
DrWeb Trojan.VbCrypt.60
VIPRE Gen:Variant.Chinky.7
TrendMicro WORM_VOBFUS.SMAB
Trapmine suspicious.low.ml.score
Emsisoft Gen:Variant.Chinky.7 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Worm.Vobfus.kwzs
Google Detected
Avira TR/VB.Agent.auoa
Varist W32/VBcrypt.T.gen!Eldorado
Antiy-AVL Worm/Win32.WBNA.gen
Kingsoft malware.kb.a.1000
Microsoft Worm:Win32/Vobfus!pz
Xcitium TrojWare.Win32.Diple.EMIB@4pez3w
Arcabit Trojan.Chinky.7
ViRobot Trojan.Win32.A.Diple.233472.K
ZoneAlarm Worm.Win32.Vobfus.dezg
GData Gen:Variant.Chinky.7
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Menti.R20177
Acronis suspicious
McAfee VBObfus.cm
MAX malware (ai score=82)
VBA32 BScope.Trojan.Diple
Malwarebytes Pronny.Worm.Spreader.DDS
Panda W32/Vobfus.GEV.worm
Rising Worm.VobfusEx!1.99DB (CLASSIC)
Yandex Trojan.GenAsa!SbK12zg9s+k
Ikarus Worm.Win32.Vobfus
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Jorik_Vobfus.FELF!tr
AVG Win32:AutoRun-COJ [Trj]
DeepInstinct MALICIOUS
alibabacloud Trojan:Win/Vobfus.da1f9077

How to remove Win32:AutoRun-COJ [Trj]?

  • 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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