Malware

What is “Win32/AutoRun.VB.ASA”?

Malware Removal

The Win32/AutoRun.VB.ASA 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.ASA virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Sample contains Overlay data
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Behavioural detection: Injection (inter-process)
  • CAPE detected the embedded win api malware family
  • Attempts to disable Windows Auto Updates
  • 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.VB.ASA?


File Info:

name: AB0BEA7EDD202FFF3C07.mlw
path: /opt/CAPEv2/storage/binaries/b5c056908eb1fb21d6867efbb895025c9a3f35e04efe260030a72e1ec820e7af
crc32: 4CD34A59
md5: ab0bea7edd202fff3c072d71515fa7e1
sha1: 4b2a93eaa229e36f5f7202804784609173ac6282
sha256: b5c056908eb1fb21d6867efbb895025c9a3f35e04efe260030a72e1ec820e7af
sha512: e5f97924a22dc4731080c437d1a62125425fabbefd446ab10dbdb22eed92f79fa9e60cac0041fb43a52b23d6707f48105248564b9cd349094f14fbc8d12e53d1
ssdeep: 3072:HrAcUx7LaIsWvZ0OgRqTAJcLGGO/xuiEyJeOOeGs5oxnkNzQKcjFL:HrMFx/ZLA4PmG6dI
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1B544B52DB390E33EF061C7F9299943A4406DBD3615E9A41BF7C21B2936F09E39260B53
sha3_384: 130f6688828d3c8ba452280e66c1213cf20008d6e8c07f67af6ec15e26df9770216c6d1ef327c0c13f687d6b9c254cad
ep_bytes: 6818524000e8eeffffff000000000000
timestamp: 2000-02-22 11:34:21

Version Info:

Translation: 0x0409 0x04b0
ProductName: ZSkZTvQuG
FileVersion: 1.00
ProductVersion: 1.00
InternalName: KBFDnZGbUk
OriginalFilename: KBFDnZGbUk.exe

Win32/AutoRun.VB.ASA also known as:

BkavW32.AIDetectMalware
LionicWorm.Win32.WBNA.low6
tehtrisGeneric.Malware
MicroWorld-eScanGen:Variant.Barys.2490
FireEyeGeneric.mg.ab0bea7edd202fff
CAT-QuickHealTrojan.Beebone.D
SkyhighBehavesLike.Win32.VBObfus.dm
McAfeeVBObfus.cu
MalwarebytesGeneric.Malware.AI.DDS
SangforSuspicious.Win32.Save.vb
CrowdStrikewin/malicious_confidence_100% (D)
K7GWEmailWorm ( 0054d10f1 )
K7AntiVirusEmailWorm ( 0054d10f1 )
BitDefenderThetaGen:NN.ZevbaF.36744.qq1@aiHmfvmi
VirITTrojan.Win32.Zyx.HU
SymantecW32.Changeup
Elasticmalicious (high confidence)
ESET-NOD32Win32/AutoRun.VB.ASA
APEXMalicious
ClamAVWin.Trojan.Vobfus-22
KasperskyWorm.Win32.Vobfus.dgmc
BitDefenderGen:Variant.Barys.2490
NANO-AntivirusTrojan.Win32.VBKrypt.cinarp
AvastWin32:Regrun-LY [Trj]
TencentWorm.Win32.Vobfus.kak
EmsisoftGen:Variant.Barys.2490 (B)
BaiduWin32.Worm.Pronny.d
F-SecureWorm.WORM/Vobfus.aqrtd
DrWebTrojan.VbCrypt.81
VIPREGen:Variant.Barys.2490
TrendMicroWORM_VOBFUS.SMAB
Trapminemalicious.high.ml.score
SophosMal/VBCheMan-B
IkarusTrojan.Win32.Vobfus
GDataGen:Variant.Barys.2490
GoogleDetected
AviraWORM/Vobfus.aqrtd
VaristW32/Vobfus.Z.gen!Eldorado
Antiy-AVLVirus/Win64.Expiro.rsrc
Kingsoftmalware.kb.a.1000
GridinsoftWorm.Win32.Autorun.sa
XcitiumWorm.Win32.VB.AB@4pji3v
ArcabitTrojan.Barys.D9BA
ZoneAlarmWorm.Win32.Vobfus.dgmc
MicrosoftWorm:Win32/Vobfus
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win32.VBKrypt.R22447
Acronissuspicious
VBA32BScope.Trojan.VB.Diple.01583
ALYacGen:Variant.Barys.2490
MAXmalware (ai score=84)
Cylanceunsafe
PandaW32/Vobfus.GEW.worm
ZonerTrojan.Win32.6610
TrendMicro-HouseCallWORM_VOBFUS.SMAB
RisingWorm.VobfusEx!1.99DB (CLASSIC)
YandexTrojan.GenAsa!2B6wK8yPm5k
SentinelOneStatic AI – Malicious PE
FortinetW32/CoinMiner.F
AVGWin32:Regrun-LY [Trj]
Cybereasonmalicious.aa229e
DeepInstinctMALICIOUS

How to remove Win32/AutoRun.VB.ASA?

Win32/AutoRun.VB.ASA 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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