Categories: Trojan

Should I remove “Trojan.Win32.Vobfus.nkn”?

The Trojan.Win32.Vobfus.nkn 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 Trojan.Win32.Vobfus.nkn 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 Trojan.Win32.Vobfus.nkn?


File Info:

name: 9583DA6A11C56D21E861.mlwpath: /opt/CAPEv2/storage/binaries/cd2a53951d1fd6a0bc2c39493a9806479089c8207f7dfdc48df19bf7b911fb54crc32: 64FFECCCmd5: 9583da6a11c56d21e8612b6a646d93d0sha1: 361043843598321866f53fd512868bc6cf440e7esha256: cd2a53951d1fd6a0bc2c39493a9806479089c8207f7dfdc48df19bf7b911fb54sha512: 601141996b955271eaf4679fbd906677d2a64f0334aa0b9e8a6616d795f9c8a9331408a3be472cde80bac81e483a60299bf688cfdebc74f5513cd64895e3125dssdeep: 3072:/SYyjLkn4aBeboiqIQ7Dq7E0zQLQQAEOJ:/v4aB87qIAq7E0zQLzAEtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1BDD3C53BBB484855C95C61782AF7C7E61263F8199A078367225437AE2CA3F541D3CB4Fsha3_384: 22f82b5200e56d244142f3ddf8e1ca6ce4ce27b8a460008808bfb369a504c32940a2fd7b118092c835f370ca13e86375ep_bytes: 68d8124000e8eeffffff000000000000timestamp: 2012-09-07 21:38:40

Version Info:

Translation: 0x0409 0x04b0ProductName: aleocharaFileVersion: 1.21ProductVersion: 1.21InternalName: blamelessOriginalFilename: blameless.exe

Trojan.Win32.Vobfus.nkn also known as:

Bkav W32.AIDetectMalware
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Barys.950
ClamAV Win.Trojan.Changeup-6169544-0
CAT-QuickHeal Trojan.Beebone.D
McAfee GenDownloader.rv
Cylance unsafe
Sangfor Suspicious.Win32.Save.vb
K7AntiVirus EmailWorm ( 0054d10f1 )
K7GW EmailWorm ( 0054d10f1 )
Cybereason malicious.a11c56
BitDefenderTheta Gen:NN.ZevbaF.36250.im0@aOy98!gi
VirIT Trojan.Win32.Vobfus.NGP
Cyren W32/Vobfus.AQ.gen!Eldorado
Symantec W32.Changeup!gen20
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/Pronny.DQ
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Trojan.Win32.Vobfus.nkn
BitDefender Gen:Variant.Barys.950
NANO-Antivirus Trojan.Win32.Vobfus.csfhgp
SUPERAntiSpyware Trojan.Agent/Gen-Vobfus
Avast Win32:VB-AEKO [Trj]
Tencent Worm.Win32.Vobfus.q
TACHYON Trojan/W32.VB-Vobfus.131072
Emsisoft Gen:Variant.Barys.950 (B)
Baidu Win32.Worm.Pronny.ek
F-Secure Trojan.TR/Barys.A.950
DrWeb Win32.HLLW.Autoruner1.25602
VIPRE Gen:Variant.Barys.950
TrendMicro WORM_VOBFUS.SM02
McAfee-GW-Edition BehavesLike.Win32.VBObfus.ct
Trapmine malicious.high.ml.score
FireEye Generic.mg.9583da6a11c56d21
Sophos Mal/SillyFDC-Y
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Barys.950
Jiangmin Trojan/Vbobf.b
Avira TR/Barys.A.950
Antiy-AVL Worm/Win32.WBNA.gen
Xcitium Worm.Win32.Pronny.ABQ@4puwz1
Arcabit Trojan.Barys.950
ZoneAlarm Trojan.Win32.Vobfus.nkn
Microsoft Worm:Win32/Vobfus.HR
Google Detected
AhnLab-V3 Trojan/Win32.Jorik.R35539
VBA32 Worm.VBNA
ALYac Gen:Variant.Barys.950
MAX malware (ai score=88)
Malwarebytes Malware.AI.4018306249
Panda Trj/Genetic.gen
TrendMicro-HouseCall WORM_VOBFUS.SM02
Rising Worm.VobfusEx!1.99DF (CLASSIC)
Yandex Trojan.GenAsa!UE+Poba9A1w
Ikarus Trojan-Downloader.Win32.Beebone
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/VBObfus.AU!tr
AVG Win32:VB-AEKO [Trj]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (D)

How to remove Trojan.Win32.Vobfus.nkn?

  • 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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