Categories: Worm

How to remove “Worm.Win32.AutoRun.pef”?

The Worm.Win32.AutoRun.pef 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.Win32.AutoRun.pef virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Creates an autorun.inf file
  • Authenticode signature is invalid
  • Installs itself for autorun at Windows startup
  • Anomalous binary characteristics

How to determine Worm.Win32.AutoRun.pef?


File Info:

name: 4C9A150E5723C8BF7ABB.mlwpath: /opt/CAPEv2/storage/binaries/2910e28df7b3a937f31671902758ea947ea1b8a580d771ae9e013ebbc79f26afcrc32: 80DA7CD0md5: 4c9a150e5723c8bf7abb7e25aab5e93bsha1: 117b0d66afc20ca942977e1b2270ae1eee3f7f49sha256: 2910e28df7b3a937f31671902758ea947ea1b8a580d771ae9e013ebbc79f26afsha512: 12b0fae5e8096c5a3f07b5fe6ab06938614ad969ef1944db1ea00fbb27b626f10dbf20f25c5ec085255feb07fc3569d3ef77a99a1a7eb900a455fe55a5fd8047ssdeep: 3072:sMw3CS222AEd5LF80dRH+nzXhQwJtQyzE6B4ODYk3enjt7hWRXOcZwrJFxvgBIT2:sMGCRDdBQnLhpJtQyVWODqnjtMg3x4BFtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1A0049DE2D563A4CCF246027C7C14C71658A99D66E2C457D0B8B12F8C83E652F8E6BF4Esha3_384: 90d4edd25212f39d7080264bfa0f8c383f0bb73cdecdb1e71c84632a519cb7ce97212f1c032efd327b81f425b6714a2fep_bytes: 6a40680010000068a08601006a00ff15timestamp: 2012-09-05 20:26:28

Version Info:

0: [No Data]

Worm.Win32.AutoRun.pef also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Win32.HLLW.Autoruner3.499
MicroWorld-eScan Gen:Variant.Downloader.126
FireEye Generic.mg.4c9a150e5723c8bf
ALYac Gen:Variant.Downloader.126
Cylance Unsafe
Zillya Worm.AutoRun.Win32.181303
Sangfor Suspicious.Win32.Save.a
K7AntiVirus EmailWorm ( 0052ca6a1 )
Alibaba Worm:Win32/AutoRun.4bffd280
K7GW EmailWorm ( 0052ca6a1 )
Cybereason malicious.e5723c
BitDefenderTheta AI:Packer.10D9AA541E
Cyren W32/Kryptik.AJG.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/AutoRun.Agent.AFG
Paloalto generic.ml
Kaspersky HEUR:Worm.Win32.AutoRun.pef
BitDefender Gen:Variant.Downloader.126
Avast FileRepMalware
Tencent Win32.Worm.Autorun.Pftq
Ad-Aware Gen:Variant.Downloader.126
Sophos ML/PE-A + Troj/Agent-BCGS
Comodo EmailWorm.Win32.AutoRun.KA@719dtc
McAfee-GW-Edition BehavesLike.Win32.Generic.cc
Emsisoft Gen:Variant.Downloader.126 (B)
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Downloader.126
Avira TR/Crypt.XPACK.Gen
MAX malware (ai score=88)
Gridinsoft Ransom.Win32.Sabsik.sa
Microsoft Trojan:Win32/Sabsik.FL.B!ml
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.RL_Generic.R295338
Acronis suspicious
McAfee GenericRXAA-AA!4C9A150E5723
VBA32 BScope.Worm.Autorun
APEX Malicious
Rising Worm.Autorun!1.AFBF (CLASSIC)
Yandex Trojan.GenAsa!6D0EeHKQIts
Ikarus Virus.Win32.Heur
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Agent.AFG!tr
AVG FileRepMalware
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_100% (W)

How to remove Worm.Win32.AutoRun.pef?

  • 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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