Categories: Malware

Win32:VB-ACEJ [Trj] (file analysis)

The Win32:VB-ACEJ [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:VB-ACEJ [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:VB-ACEJ [Trj]?


File Info:

name: 964296B9D50B145EE88F.mlwpath: /opt/CAPEv2/storage/binaries/0b87bfe63aa1be9a88aa34773fae1bc0b9e51edf16b1c0b33764a90f8c2fc55bcrc32: 5E16DEE8md5: 964296b9d50b145ee88f928d1177d461sha1: af25cbd24f4ff58560b2a95a58ff13d4090223easha256: 0b87bfe63aa1be9a88aa34773fae1bc0b9e51edf16b1c0b33764a90f8c2fc55bsha512: d076971169558d287bceced0374914df3bca2fb5b2d0c24cdad3a4ce47e0f9696d9d3fc026168f7fdfa8c615aad40928b10713e1f048707c523e26fded634be9ssdeep: 1536:EPXL/lgjJ8isVycDEJfNOPcDGwmgRouYmvqwMewT/0Xu+b5kroNIjnZ4W:INiGyccm/3iu+bFCnWWtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T17CA371973F352459F55955302EF38AF23BD2A88C4A1B46426B3436281FEFE322D25B53sha3_384: 4584b542b85153e88dc171e3aaae62081f5c4a56e32ed86c00125f02438222fb6207a6bd572ec8e8b7e3e994500d3010ep_bytes: 6810124000e8f0ffffff000000000000timestamp: 2012-04-03 18:20:42

Version Info:

Translation: 0x0409 0x04b0ProductName: DqEpbAkzpjFileVersion: 1.00ProductVersion: 1.00InternalName: aYEJsOfsOriginalFilename: aYEJsOfs.exe

Win32:VB-ACEJ [Trj] also known as:

Bkav W32.AIDetectMalware
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Barys.950
ClamAV Win.Trojan.VB-73682
CAT-QuickHeal Trojan.Beebone.D
Skyhigh BehavesLike.Win32.VBObfus.ct
McAfee VBObfus.dv
Malwarebytes Generic.Malware.AI.DDS
Zillya Trojan.VobfusGen.Win32.2
Sangfor Suspicious.Win32.Save.vb
K7AntiVirus EmailWorm ( 0054d10f1 )
K7GW EmailWorm ( 0054d10f1 )
Cybereason malicious.24f4ff
Baidu Win32.Trojan.AutoRun.bb
VirIT Trojan.Win32.Zyx.JM
Symantec W32.Changeup
ESET-NOD32 Win32/AutoRun.VB.AUF
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Trojan.Win32.Vobfus.dtb
BitDefender Gen:Variant.Barys.950
NANO-Antivirus Trojan.Win32.Vobfus.cqkxxr
SUPERAntiSpyware Trojan.Agent/Gen-Vobfus
Avast Win32:VB-ACEJ [Trj]
Tencent Worm.Win32.Vobfus.h
TACHYON Worm/W32.Agent.106496
Emsisoft Gen:Variant.Barys.950 (B)
F-Secure Trojan.TR/Otran.aztrza
DrWeb Win32.HLLW.Autoruner2.18834
VIPRE Gen:Variant.Barys.950
TrendMicro WORM_VOBFUS.SM41
FireEye Generic.mg.964296b9d50b145e
Sophos W32/Vobfus-AA
Ikarus Trojan.Win32.Vobfus
GData Gen:Variant.Barys.950
Jiangmin Trojan/Vobfus.mlf
Google Detected
Avira TR/Otran.aztrza
Antiy-AVL Worm/Win32.WBNA.gen
Kingsoft malware.kb.a.1000
Xcitium Worm.Win32.Pronny.AK@4ogvoo
Arcabit Trojan.Barys.950
ZoneAlarm Trojan.Win32.Vobfus.dtb
Microsoft Worm:Win32/Vobfus.EC
Varist W32/VBInject.CO.gen!Eldorado
AhnLab-V3 Worm/Win32.VBNA.R23055
Acronis suspicious
VBA32 TScope.Trojan.VB
ALYac Gen:Variant.Barys.950
MAX malware (ai score=84)
Cylance unsafe
Panda W32/Vobfus.GEW.worm
TrendMicro-HouseCall WORM_VOBFUS.SM41
Rising Trojan.FakeIcon!1.64A0 (CLASSIC)
Yandex Trojan.GenAsa!66q+qwjMeX0
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.W32.SuperThreat.m
Fortinet W32/VBObfus.AU!tr
BitDefenderTheta Gen:NN.ZevbaF.36744.gm0@a4AqUBhi
AVG Win32:VB-ACEJ [Trj]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (D)

How to remove Win32:VB-ACEJ [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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