Categories: Worm

What is “Worm.VB.Autorun”?

The Worm.VB.Autorun 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 Worm.VB.Autorun virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Dynamic (imported) function loading detected
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Unconventionial language used in binary resources: Spanish (Chile)
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Behavioural detection: Injection (inter-process)
  • Created a process from a suspicious location
  • Creates a copy of itself
  • Anomalous binary characteristics

How to determine Worm.VB.Autorun?


File Info:

name: BB7C89E042EC029804AA.mlwpath: /opt/CAPEv2/storage/binaries/ec1f946c5724771593f311aa04266c748eab1131508a1a2625714f3574f3c82bcrc32: 7169272Dmd5: bb7c89e042ec029804aacba7caf13d99sha1: 8835b5f82e1ea2e887e090dd6d53c609aed800c1sha256: ec1f946c5724771593f311aa04266c748eab1131508a1a2625714f3574f3c82bsha512: 30adf0e02eaf4471189658cd00dc30d143d5cb7cc2934461b094e2e75549c5e759bae5e5638842a7cf487dce2aa4bc50ed9f241e72e346f3fc6242f63d5e2cd2ssdeep: 1536:z0HjHkAScR9hXkYQB3k69JusuqdGiA2MvZut+pN5ULmRPYAVPlVDKmQ9x6:zWEcWY9HVX2MvktynULsPemGx6type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1918502196C2C6931E6CE54B290D78143A8BF583CDAFBA4EB4C900AD0D2750FB5D3616Fsha3_384: b0a6d60083467b990341e9d2414deb39df9b4aa7b3c7a17e5a721ac432f2e55fbf172ca6a530cb35fa7fbe4e04f53a46ep_bytes: 558becb804100000e873020000a10030timestamp: 2013-06-09 15:24:29

Version Info:

0: [No Data]

Worm.VB.Autorun also known as:

Bkav W32.AIDetect.malware1
DrWeb Win32.HLLW.Siggen.4811
MicroWorld-eScan Gen:Variant.Cerbu.82817
FireEye Generic.mg.bb7c89e042ec0298
CAT-QuickHeal Worm.Esfury.A
ALYac Gen:Variant.Cerbu.82817
Cylance Unsafe
Sangfor Suspicious.Win32.Save.a
K7AntiVirus P2PWorm ( 001eebf51 )
K7GW P2PWorm ( 001eebf51 )
Cybereason malicious.042ec0
BitDefenderTheta Gen:NN.ZexaF.34742.UzZ@aG5iktH
Symantec SMG.Heur!gen
Elastic malicious (high confidence)
ESET-NOD32 Win32/AutoRun.VB.XW
ClamAV Win.Trojan.Esfury-87
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Cerbu.82817
NANO-Antivirus Trojan.Win32.AntiAV.cqkxpe
Avast Win32:FakeAV-ESP [Trj]
Ad-Aware Gen:Variant.Cerbu.82817
Sophos ML/PE-A
Comodo TrojWare.Win32.Injector.AQJ@4zto9a
Baidu Win32.Trojan-Dropper.Injector.g
Zillya Trojan.AntiAV.Win32.5678
McAfee-GW-Edition W32/Worm-FNH!BB7C89E042EC
Emsisoft Gen:Variant.Cerbu.82817 (B)
SentinelOne Static AI – Suspicious PE
GData Gen:Variant.Cerbu.82817
Jiangmin Trojan/Onescan.ma
Webroot W32.Trojan.Gen
Avira TR/Dropper.Gen
Arcabit Trojan.Cerbu.D14381
Microsoft Trojan:Win32/Wacatac.B!ml
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Agent.R72946
McAfee W32/Worm-FNH!BB7C89E042EC
MAX malware (ai score=84)
VBA32 Worm.VB.Autorun.gen
Malwarebytes Malware.AI.4141103819
APEX Malicious
Rising Trojan.Generic@AI.93 (RDML:uITn6m89mcRqVKTzpZwymg)
Yandex Worm.Agent!8zYvCQOZNvQ
MaxSecure Trojan.Malware.7164915.susgen
Fortinet W32/Generic.AC.753!tr
AVG Win32:FakeAV-ESP [Trj]
CrowdStrike win/malicious_confidence_100% (D)

How to remove Worm.VB.Autorun?

  • 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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