Categories: Malware

Troj/VB-KVR malicious file

The Troj/VB-KVR 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 Troj/VB-KVR 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
  • Authenticode signature is invalid
  • Behavioural detection: Injection (inter-process)
  • 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 Troj/VB-KVR?


File Info:

name: DEC19FF8AA14006C06FB.mlwpath: /opt/CAPEv2/storage/binaries/c2f2833d2bccd0cc2f7595770b9efe19ad4c2a2d658744077d4bdc43c78a262fcrc32: AA1AB7A8md5: dec19ff8aa14006c06fb64a35e860130sha1: 5e4301722a10f25ae0cb837cdeec3d7dcc661b93sha256: c2f2833d2bccd0cc2f7595770b9efe19ad4c2a2d658744077d4bdc43c78a262fsha512: e86ec12ac8cae60e348bee9ed14f4f6b96596b01dbddabc8e7e307f448dd61251a0a357a275af4d32d5402957d4bf317a1054c224a7c18103706c2ba1953ac7cssdeep: 1536:mbx8a7vst+SbtS0SIImNMlsCSZxIG+UkHo8p9yM:+vzRflo8p9ytype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T11AF3B53EB24A1866DB08B239336BC7D715D778890B5F5A8767B463BD9C28F102C21B53sha3_384: 779fe8145ff0d5141aded71c65885690e5b1724b6b0230896d667fb7e4a2ffee8762d2199f8b0bc7835f3cb24a67b7eeep_bytes: 68a0114000e8f0ffffff000000000000timestamp: 2010-12-23 04:15:48

Version Info:

0: [No Data]

Troj/VB-KVR also known as:

Bkav W32.AIDetectMalware
DrWeb Trojan.Packed.21297
MicroWorld-eScan Gen:Variant.Barys.431203
ClamAV Win.Trojan.Changeup-6169544-0
ALYac Gen:Variant.Barys.431203
Malwarebytes Generic.Worm.AutoRun.DDS
Sangfor Suspicious.Win32.Save.vb
K7AntiVirus Trojan ( 001f4fd51 )
K7GW Trojan ( 001f4fd51 )
Cybereason malicious.8aa140
BitDefenderTheta AI:Packer.45AB16B61E
VirIT Trojan.Win32.Shiru.AY
Cyren W32/VBKrypt.BIA.gen!Eldorado
Symantec W32.Changeup!gen20
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/AutoRun.VB.XY
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Worm.Win32.VBNA.brlr
BitDefender Gen:Variant.Barys.431203
NANO-Antivirus Trojan.Win32.Mlw.iejaqv
Avast Win32:AutoRun-BSJ [Trj]
Tencent Worm.Win32.Wbna .16000410
Emsisoft Gen:Variant.Barys.431203 (B)
F-Secure Trojan:W32/Vbkrypt.D
Baidu Win32.Worm.AutoRun.cj
VIPRE Gen:Variant.Barys.431203
McAfee-GW-Edition BehavesLike.Win32.VBObfus.cz
Trapmine malicious.high.ml.score
FireEye Generic.mg.dec19ff8aa14006c
Sophos Troj/VB-KVR
SentinelOne Static AI – Malicious PE
GData Win32.Trojan.PSE.W8YF7G
Jiangmin Worm/VBNA.gxfn
Avira TR/Patched.Ren.Gen
MAX malware (ai score=80)
Antiy-AVL Worm/Win32.WBNA.gen
Xcitium TrojWare.Win32.VB.X@2i170u
Arcabit Trojan.Barys.D69463
ViRobot Trojan.Win32.A.VBKrypt.61440.FF
ZoneAlarm Worm.Win32.VBNA.brlr
Microsoft TrojanDownloader:Win32/Purora
Google Detected
AhnLab-V3 Worm/Win.VBNA.C5398769
McAfee VBObfus.dq
TACHYON Trojan/W32.VB-Agent.167936.EV
VBA32 SScope.Trojan.VBRA.2842
Cylance unsafe
Panda Trj/Genetic.gen
Rising Trojan.Win32.VBCode.cbu (CLASSIC)
Ikarus Trojan-Dropper
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/VBKrypt.AGW!tr
AVG Win32:AutoRun-BSJ [Trj]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (D)

How to remove Troj/VB-KVR?

  • 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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