Categories: Worm

Worm.Win32.Vobfus.efjn removal guide

The Worm.Win32.Vobfus.efjn 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Worm.Win32.Vobfus.efjn 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)
  • 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 Worm.Win32.Vobfus.efjn?


File Info:

name: E5327D8AFE68BCDFA20A.mlwpath: /opt/CAPEv2/storage/binaries/ef0ef0091ab0aab3c616a84750915bdabc75ffec7b716a1b06ffc29381b2ea34crc32: 90EFB6F0md5: e5327d8afe68bcdfa20a5d340e045d2fsha1: e5167d087ff9012ae5fba05448bfb071c7df19ebsha256: ef0ef0091ab0aab3c616a84750915bdabc75ffec7b716a1b06ffc29381b2ea34sha512: d059a4aaeafb8774c822ae3767879b3626ba1dae885bc02ea945a4d53d8212b0f0b0a0fe5d18c3039733939d58ef9e14ae068602609aa13c07033feabf2cc336ssdeep: 3072:bCbOgtokrGwkAjpWn1KG912QXXU+EnHsRPaVT4oQZiEY1:b4GdwkGG9ggkMRPaHWMtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T14CF3922A7780F27AC415C6F4392A43A0947EEC3621D6B817F7C25B16B6F1DABD220753sha3_384: 0dd7f3dd1ebeb6062e7a31732145cc9db3f3f32337bc8d22beb95666a9674eb4a819b553f2b2ff71f33402e5851934f6ep_bytes: 68d8394000e8f0ffffff000000000000timestamp: 2011-09-04 15:23:45

Version Info:

Translation: 0x0409 0x04b0ProductName: dhdbASqCkqsYFileVersion: 1.00ProductVersion: 1.00InternalName: pCGjdawywRRVlaakbMYsOriginalFilename: pCGjdawywRRVlaakbMYs.exe

Worm.Win32.Vobfus.efjn also known as:

Bkav W32.AIDetectMalware
Lionic Worm.Win32.WBNA.luev
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Heur.Conjar.1
FireEye Generic.mg.e5327d8afe68bcdf
CAT-QuickHeal Trojan.Vobfus.gen
McAfee VBObfus.bb
Cylance unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus EmailWorm ( 0054d10f1 )
Alibaba Malware:Win32/km_2ff36.None
K7GW EmailWorm ( 0054d10f1 )
CrowdStrike win/malicious_confidence_100% (W)
Arcabit Trojan.Conjar.1
BitDefenderTheta AI:Packer.A49F85E220
VirIT Trojan.Win32.SHeur4.BDZ
Cyren W32/Vobfus.V.gen!Eldorado
Symantec W32.Changeup!gen35
ESET-NOD32 Win32/AutoRun.VB.AKY
APEX Malicious
ClamAV Win.Trojan.VB-1544
Kaspersky Worm.Win32.Vobfus.efjn
BitDefender Gen:Heur.Conjar.1
NANO-Antivirus Trojan.Win32.WBNA.jshwyd
SUPERAntiSpyware Trojan.Agent/Gen-Vobfus
Avast Win32:VB-ABDC [Drp]
Tencent Trojan.Win32.Koobface.p
TACHYON Trojan/W32.VBKrypt.159744
Emsisoft Gen:Heur.Conjar.1 (B)
Baidu Win32.Trojan.Inject.n
F-Secure Trojan.TR/Spy.Agent.143363
DrWeb Trojan.VbCrypt.60
VIPRE Gen:Heur.Conjar.1
TrendMicro WORM_VOBFUS.SMAC
McAfee-GW-Edition BehavesLike.Win32.VBObfus.cm
Trapmine malicious.high.ml.score
Sophos Mal/SillyFDC-T
SentinelOne Static AI – Malicious PE
Google Detected
Avira TR/Spy.Agent.143363
Antiy-AVL Worm/Win32.WBNA.gen
Xcitium TrojWare.Win32.VB.AVA@4paxk7
Microsoft Worm:Win32/Vobfus.gen!N
ZoneAlarm Worm.Win32.Vobfus.efjn
GData Gen:Heur.Conjar.1
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Diple.R13793
VBA32 BScope.Trojan.Diple
ALYac Gen:Heur.Conjar.1
MAX malware (ai score=87)
Malwarebytes Malware.AI.2133932422
Panda Trj/Genetic.gen
TrendMicro-HouseCall WORM_VOBFUS.SMAC
Rising Worm.Vobfus!1.99C7 (CLASSIC)
Yandex Trojan.GenAsa!BsY8M+LC9UA
Ikarus Win32.Outbreak
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/VBKrypt.C!tr
AVG Win32:VB-ABDC [Drp]
DeepInstinct MALICIOUS

How to remove Worm.Win32.Vobfus.efjn?

  • 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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Paul Valéry

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