Categories: Malware

What is “Win32/Bayrob.BL”?

The Win32/Bayrob.BL 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/Bayrob.BL virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Dynamic (imported) function loading detected
  • Starts servers listening on 127.0.0.1:11678
  • Enumerates running processes
  • Expresses interest in specific running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Created a process from a suspicious location
  • Installs itself for autorun at Windows startup
  • Installs itself for autorun at Windows startup
  • Likely virus infection of existing system binary
  • Creates a copy of itself
  • Attempts to modify or disable Security Center warnings

How to determine Win32/Bayrob.BL?


File Info:

name: 0398AF7EB77111362E8E.mlwpath: /opt/CAPEv2/storage/binaries/2653e1d07a6f07f3c514b96a20d134cbdb1e10a779bac584b679b2490ae99161crc32: 5EF32BB7md5: 0398af7eb77111362e8e8df38c4c4d4esha1: 643b879c9f014e3f0956a6f59cacdda2e21c8a0csha256: 2653e1d07a6f07f3c514b96a20d134cbdb1e10a779bac584b679b2490ae99161sha512: b694c3d00c8ca3cc208f5bb35b5974786c9971e88190ba86d8e21b278088d6ffaeb7e3910c67bef8c083deb3a1a562d0acce1b6a749c04cffa5ff20fce9984c4ssdeep: 24576:XsnZxq+JfBq4dCbyAhyWtY1CbYiPGYM6AxqPMZ+X:c/qo8vb1hyWt9btGYTS+type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1DE35CF1696928077CC462DBC249FB731D9AD603A93E499C3ABC258FC84447D17AB339Fsha3_384: bf7bd0776863f613a9e222725c1e6261191ad70b08a7e5a425a04abe3cbead18fc0228de84238be2ca91d127d46bdf56ep_bytes: e8b09e0000e989feffff8bff558bec8btimestamp: 2014-08-02 16:08:37

Version Info:

0: [No Data]

Win32/Bayrob.BL also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Generic.4!c
MicroWorld-eScan Gen:Variant.Zusy.179369
FireEye Generic.mg.0398af7eb7711136
ALYac Gen:Variant.Zusy.179369
Cylance Unsafe
VIPRE Gen:Variant.Zusy.179369
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 004f8fbb1 )
Alibaba Trojan:Win32/Bayrob.4e3e40d7
K7GW Trojan ( 004f8fbb1 )
CrowdStrike win/malicious_confidence_90% (W)
Baidu Win32.Trojan.Bayrob.c
Cyren W32/Nivdort.M.gen!Eldorado
Symantec Trojan.Bayrob!gen9
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Bayrob.BL
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Zusy.179369
Avast Win32:Trojan-gen
Tencent Win32.Trojan.Generic.Eom
Ad-Aware Gen:Variant.Zusy.179369
DrWeb Trojan.Siggen18.21289
TrendMicro TROJ_GEN.R002C0OG722
McAfee-GW-Edition BehavesLike.Win32.Generic.tc
Trapmine malicious.high.ml.score
Emsisoft Gen:Variant.Zusy.179369 (B)
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Zusy.179369
Avira HEUR/AGEN.1229054
Antiy-AVL Trojan/Generic.ASMalwS.720E
Microsoft Trojan:Win32/Wacatac.B!ml
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Nivdort.C1321145
McAfee GenericRXJM-YK!0398AF7EB771
MAX malware (ai score=89)
VBA32 BScope.Trojan.Nivdort
Malwarebytes Trojan.Bayrob.Generic
TrendMicro-HouseCall TROJ_GEN.R002C0OG722
Rising Trojan.Generic@AI.100 (RDML:sinUWlEf6d97PMrcVSfrfg)
Yandex Trojan.Agent!MCTl5v8/UVg
Ikarus Trojan.Win32.Bayrob
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Bayrob.BL!tr
BitDefenderTheta AI:Packer.853FFEDE1E
AVG Win32:Trojan-gen
Cybereason malicious.eb7711
Panda Trj/GdSda.A

How to remove Win32/Bayrob.BL?

  • 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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