Categories: Malware

Barys.431203 (B) (file analysis)

The Barys.431203 (B) 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 Barys.431203 (B) 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 Barys.431203 (B)?


File Info:

name: 2126702DE9B63F49D211.mlwpath: /opt/CAPEv2/storage/binaries/938b5bc22b3c1b0c063033594d22919e443a884c647af4a92a47bc52a4154629crc32: BD1F87BFmd5: 2126702de9b63f49d211587237354a82sha1: 1d37dd672d74852174dd43af586b46e169262ccesha256: 938b5bc22b3c1b0c063033594d22919e443a884c647af4a92a47bc52a4154629sha512: 29e4993c589f0d207ce0427bc3c87744d372c2bad163f52e1ce9af3a60f23679124ef806b26a948a8730bf9d5d6d5f4fcb27e4c6865bfc1d17d34a2c2c01e98bssdeep: 1536:XbxGB7vst+SbtS0SIImNMlsCSZxIG+UkHo0:ovzRflo0type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T157F3B53EB24A186ADB08B239335BC7D715D778890B5F5A8767B463BD9C28F102C21B53sha3_384: f1422daaa2816381478609bec10469746a257e8792650e70a5819724ad2e27e69f416814009dfe75bd1ace8ae046e0c1ep_bytes: 68a0114000e8f0ffffff000000000000timestamp: 2010-12-23 04:15:48

Version Info:

0: [No Data]

Barys.431203 (B) also known as:

Bkav W32.AIDetectMalware
MicroWorld-eScan Gen:Variant.Barys.431203
FireEye Generic.mg.2126702de9b63f49
CAT-QuickHeal TrojanDownloader.Purora
ALYac Gen:Variant.Barys.431203
Malwarebytes Generic.Worm.AutoRun.DDS
Sangfor Suspicious.Win32.Save.vb
K7AntiVirus Trojan ( 001f4fd51 )
K7GW Trojan ( 001f4fd51 )
CrowdStrike win/malicious_confidence_100% (W)
Arcabit Trojan.Barys.D69463
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
ClamAV Win.Trojan.Changeup-6169544-0
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
TACHYON Trojan/W32.VB-Agent.167936.EV
Emsisoft Gen:Variant.Barys.431203 (B)
Baidu Win32.Worm.AutoRun.cj
F-Secure Trojan:W32/Vbkrypt.D
DrWeb Trojan.Packed.21297
VIPRE Gen:Variant.Barys.431203
McAfee-GW-Edition BehavesLike.Win32.VBObfus.cz
Trapmine malicious.high.ml.score
Sophos Troj/VB-KVR
Ikarus Trojan-Dropper
Jiangmin Worm/VBNA.gxfn
Avira TR/Patched.Ren.Gen
Antiy-AVL Worm/Win32.WBNA.gen
Xcitium TrojWare.Win32.VB.X@2i170u
Microsoft TrojanDownloader:Win32/Purora
ViRobot Trojan.Win32.A.VBKrypt.61440.FF
ZoneAlarm Worm.Win32.VBNA.brlr
GData Win32.Trojan.PSE.W8YF7G
Cynet Malicious (score: 100)
AhnLab-V3 Worm/Win.VBNA.C5398769
McAfee VBObfus.dq
MAX malware (ai score=85)
VBA32 SScope.Trojan.VBRA.2842
Cylance unsafe
Panda Trj/Genetic.gen
Rising Trojan.Win32.VBCode.cbu (CLASSIC)
Yandex Trojan.GenAsa!LeaBETo6kWM
SentinelOne Static AI – Malicious PE
Fortinet W32/VBKrypt.AGW!tr
AVG Win32:AutoRun-BSJ [Trj]
Cybereason malicious.de9b63
DeepInstinct MALICIOUS

How to remove Barys.431203 (B)?

  • 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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