Malware

About “Win32/AutoRun.VB.ATO” infection

Malware Removal

The Win32/AutoRun.VB.ATO 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.VB.ATO 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
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Win32/AutoRun.VB.ATO?


File Info:

name: C74A9A0A7D7DB318C275.mlw
path: /opt/CAPEv2/storage/binaries/38dc67e1e62a9f3ef5dde0108219f9ad0a83f51c85883bb45889e49da98c4504
crc32: C1622640
md5: c74a9a0a7d7db318c27578583e718c03
sha1: 4eb8eae6d8eeec6fd6fdebce2a56a52c2320f8ca
sha256: 38dc67e1e62a9f3ef5dde0108219f9ad0a83f51c85883bb45889e49da98c4504
sha512: 50a396dd45ea95ac9cf421bf8d033199b09c8a8a12e8905b8d2951bc568ba1024ef4cb0d504766d7412393c5c36f39426108f978594ae6e3f1e88185bc133876
ssdeep: 6144:SIFIpydVsZyxyK5R8GYKi1Xfvs1tzH51t+ewSReXNX/:XuydfiebOv
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T16A547445A928B03BE55684B33826C757181C2E7222D0EC67B391AB0D71712E7FAF572F
sha3_384: 96955d925028f25641d9474757e718d61d14fbec107fcb90903513dc1be56e9436426817a16274c546d0b28f4e659f94
ep_bytes: 6890434000e8f0ffffff000000000000
timestamp: 2012-03-20 02:03:55

Version Info:

ProductName:
FileVersion: 1.00
ProductVersion: 1.00
InternalName:
OriginalFilename:
Translation: 0x0409 0x04b0

Win32/AutoRun.VB.ATO also known as:

BkavW32.AIDetectMalware
LionicWorm.Win32.Vobfus.o!c
Elasticmalicious (high confidence)
MicroWorld-eScanGen:Variant.VBInject.11
FireEyeGeneric.mg.c74a9a0a7d7db318
CAT-QuickHealTrojan.Beebone.D
SkyhighBehavesLike.Win32.VBObfus.dm
ALYacGen:Variant.VBInject.11
Cylanceunsafe
VIPREGen:Variant.VBInject.11
SangforSuspicious.Win32.Save.vb
K7AntiVirusEmailWorm ( 0054d10f1 )
BitDefenderGen:Variant.VBInject.11
K7GWEmailWorm ( 0054d10f1 )
Cybereasonmalicious.6d8eee
BitDefenderThetaGen:NN.ZevbaF.36792.rm0@aWqMSwki
VirITBackdoor.Win32.VB.ONM
SymantecW32.Changeup
tehtrisGeneric.Malware
ESET-NOD32Win32/AutoRun.VB.ATO
APEXMalicious
ClamAVWin.Trojan.Changeup-6169544-0
KasperskyWorm.Win32.Vobfus.efqz
AlibabaWorm:Win32/Vobfus.e97d45b9
NANO-AntivirusTrojan.Win32.Vobfus.facmuu
RisingWorm.VobfusEx!1.99DB (CLASSIC)
SophosMal/SillyFDC-W
BaiduWin32.Worm.Autorun.l
F-SecureTrojan.TR/VBInject.11.A.1
DrWebTrojan.VbCrypt.60
TrendMicroWORM_VBNA.SMKC
Trapminemalicious.moderate.ml.score
EmsisoftGen:Variant.VBInject.11 (B)
IkarusWorm.Win32.Vobfus
MAXmalware (ai score=88)
GDataGen:Variant.VBInject.11
GoogleDetected
AviraTR/VBInject.11.A.1
VaristW32/VBcrypt.T.gen!Eldorado
Antiy-AVLWorm/Win32.WBNA.gen
Kingsoftmalware.kb.a.999
XcitiumTrojWare.Win32.VB.AVA@4paxk7
ArcabitTrojan.VBInject.11
SUPERAntiSpywareTrojan.Agent/Gen-Autorun
ZoneAlarmWorm.Win32.Vobfus.efqz
MicrosoftWorm:Win32/Vobfus!pz
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win32.Jorik.R22659
Acronissuspicious
McAfeeVBObfus.dh
TACHYONWorm/W32.Vobfus.286720.C
DeepInstinctMALICIOUS
VBA32BScope.Trojan.VB.Onechki
MalwarebytesPronny.Worm.Spreader.DDS
PandaW32/Vobfus.GEW.worm
TrendMicro-HouseCallWORM_VBNA.SMKC
TencentWorm.Win32.Autorun.twl
YandexTrojan.GenAsa!dFlQiwYYslQ
SentinelOneStatic AI – Malicious PE
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/VBKrypt.C!tr
AVGWin32:VB-ABUN [Trj]
AvastWin32:VB-ABUN [Trj]
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Win32/AutoRun.VB.ATO?

Win32/AutoRun.VB.ATO 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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