Categories: Malware

Win32:AutoRun-CSS [Wrm] (file analysis)

The Win32:AutoRun-CSS [Wrm] 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-CSS [Wrm] 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)
  • Attempts to disable Windows Auto Updates
  • Anomalous binary characteristics
  • Attempts to modify Explorer settings to prevent hidden files from being displayed

How to determine Win32:AutoRun-CSS [Wrm]?


File Info:

name: AD0D3F006B83C77EE502.mlwpath: /opt/CAPEv2/storage/binaries/619807c8574cbe57c74657b401f711cc0ebafd20890d663bdf4a791aeed32442crc32: 69354551md5: ad0d3f006b83c77ee5024a40737d5ca8sha1: e2b129ebf350b93ed743172e14248ec554f37434sha256: 619807c8574cbe57c74657b401f711cc0ebafd20890d663bdf4a791aeed32442sha512: e406e34e4790029612d138a94f0feb23f8c5094ca3a1dc73a550b3b86cd53f88c952ca41fe85ee41e931ad72fb8e241ee6cc8c4f0d8fd4a408ca6ba02042b3edssdeep: 3072:mFvdzk9oHFGFooobAqzNOEbOKZbtpGPsLxf:mFvlNPseNmKJtpLftype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T13C24743D7380B73DF825C3F9688A4390545DE9360985980BFBC2671A76E09A3F7217A7sha3_384: fe715e7abeeee8b06b8e7c4e4c56aad771a02e345360c4f88cdbe00ad79d6d77451e72335b7b64daf316a173fda77804ep_bytes: 68003e4000e8eeffffff000048000000timestamp: 2012-03-15 06:00:48

Version Info:

FileVersion: 3.10ProductVersion: 3.10Translation: 0x0409 0x04b0

Win32:AutoRun-CSS [Wrm] also known as:

Bkav W32.AIDetectMalware
tehtris Generic.Malware
MicroWorld-eScan Gen:Variant.VBInject.11
FireEye Generic.mg.ad0d3f006b83c77e
CAT-QuickHeal Trojan.Beebone.D
Skyhigh BehavesLike.Win32.VBObfus.dm
McAfee Generic VB.kk
Malwarebytes Generic.Worm.AutoRun.DDS
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
K7GW EmailWorm ( 0054d10f1 )
K7AntiVirus EmailWorm ( 0054d10f1 )
BitDefenderTheta Gen:NN.ZevbaF.36802.nm0@aa2J8eai
VirIT Worm.Win32.VBNA.AZVP
Symantec W32.Changeup
Elastic malicious (high confidence)
ESET-NOD32 Win32/AutoRun.VB.ATH
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Worm.Win32.Vobfus.dfrv
BitDefender Gen:Variant.VBInject.11
NANO-Antivirus Trojan.Win32.VB.chzviz
SUPERAntiSpyware Trojan.Agent/Gen-Dropper
Avast Win32:AutoRun-CSS [Wrm]
Tencent Worm.Win32.Vobfus.n
TACHYON Worm/W32.Vobfus.221184.B
Emsisoft Gen:Variant.VBInject.11 (B)
Baidu Win32.Trojan.Inject.n
F-Secure Trojan.TR/Dropper.Gen
DrWeb Trojan.VbCrypt.81
VIPRE Gen:Variant.VBInject.11
TrendMicro WORM_VOBFUS.SMAF
Trapmine malicious.high.ml.score
Sophos W32/SillyFDC-HQ
Ikarus Worm.Win32.Vobfus
Jiangmin Trojan/Vbobf.b
Webroot W32.Worm.Gen
Varist W32/Vobfus.AD.gen!Eldorado
Avira TR/Dropper.Gen
Antiy-AVL Worm/Win32.WBNA.gen
Kingsoft malware.kb.a.1000
Xcitium Worm.Win32.Pronny.AK@4ogvoo
Arcabit Trojan.VBInject.11
ViRobot Worm.Win32.A.VBNA.221184.U
ZoneAlarm Worm.Win32.Vobfus.dfrv
GData Gen:Variant.VBInject.11
Google Detected
AhnLab-V3 Worm/Win32.WBNA.R22840
Acronis suspicious
VBA32 BScope.Trojan.VB.Onechki
ALYac Gen:Variant.VBInject.11
MAX malware (ai score=83)
Cylance unsafe
Panda W32/Vobfus.GEW.worm
TrendMicro-HouseCall WORM_VOBFUS.SMAF
Rising Worm.VobfusEx!1.99D9 (CLASSIC)
SentinelOne Static AI – Malicious PE
Fortinet W32/VBKrypt.C!tr
AVG Win32:AutoRun-CSS [Wrm]
DeepInstinct MALICIOUS
alibabacloud Trojan[dropper]:Win/Vobfus.381c8f2b

How to remove Win32:AutoRun-CSS [Wrm]?

  • 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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