Categories: Malware

How to remove “Win32/Klez.E”?

The Win32/Klez.E 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Win32/Klez.E virus can do?

  • Sample contains Overlay data
  • CAPE extracted potentially suspicious content
  • Authenticode signature is invalid
  • Anomalous binary characteristics

How to determine Win32/Klez.E?


File Info:

name: 42FF23DB102DDA21C63C.mlwpath: /opt/CAPEv2/storage/binaries/5f9b5d2c59c406ebbcfb0355ccf5a60ea72fad0516a1b30ed85603579e6031a8crc32: E1AF99B8md5: 42ff23db102dda21c63c93bf401b552bsha1: 48c6e4a86506f2b8424d90ac2d40cda709533528sha256: 5f9b5d2c59c406ebbcfb0355ccf5a60ea72fad0516a1b30ed85603579e6031a8sha512: d90081e84155881bd1f88de29cf8f6e91547c82528fb669c91009e69a7e934819594caf1e98c353500959488bc01899a44442503098c3d11c4bf2cf6a5485b77ssdeep: 768:VXS6Lnze1gshn5ew/QuBdL/4Ckir4SWeq3HwFdkt+Afs2DBnogK6KcgM:RSSnze1gsJ55n/4CkOwwF+bhobtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1C9738D237992C033C6964270D3699716AAFFD9321BA6E893D7014B963D207D1DE3938Bsha3_384: f80855dd04310690ad2328fb11c08730c76476146d2cf2c21dc7460f4a357d3a189ce681a06a178d3c2e09c146fd64b6ep_bytes: 558bec6aff6838d240006824a8400064timestamp: 2002-01-14 08:44:12

Version Info:

0: [No Data]

Win32/Klez.E also known as:

Bkav W32.KlezE.Worm
Elastic malicious (high confidence)
MicroWorld-eScan Win32.Klez.E@mm
ClamAV Win.Worm.Klez-2
FireEye Generic.mg.42ff23db102dda21
CAT-QuickHeal W32.Klez.H
Skyhigh BehavesLike.Win32.Klez.lh
McAfee W32/Klez.e@MM
Malwarebytes Generic.Malware.AI.DDS
VIPRE Win32.Klez.E@mm
Sangfor Suspicious.Win32.Save.ins
K7AntiVirus EmailWorm ( 000805561 )
K7GW EmailWorm ( 000805561 )
Cybereason malicious.86506f
Arcabit Win32.Klez.EA8AF7
Baidu Win32.Worm.Klez.a
VirIT Win32.Klez.E
Symantec W32.Klez.E@mm
ESET-NOD32 Win32/Klez.E
Zoner Worm.Win32.Klez.24278
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Email-Worm.Win32.Klez.k
BitDefender Win32.Klez.E@mm
NANO-Antivirus Trojan.Win32.Klez.gleq
SUPERAntiSpyware Worm.Klez
Avast Win32:Klez-E [Wrm]
Tencent Email-Worm.Win32.Klez.ha
Sophos W32/Klez-E
F-Secure Worm.WORM/Klez.E
DrWeb Win32.HLLM.Klez.1
Zillya Worm.Klez.Win32.2
TrendMicro WORM_KLEZ.GEN
Trapmine malicious.high.ml.score
Emsisoft Win32.Klez.E@mm (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Worm/Klez.l
Webroot W32.Worm.Klez
Google Detected
Avira WORM/Klez.E
MAX malware (ai score=84)
Antiy-AVL Worm[Email]/Win32.Klez.k
Xcitium Worm.Win32.Klez.E@3bt0
Microsoft Worm:Win32/Klez.E@mm
ViRobot I-Worm.Win32.Klez-gen
ZoneAlarm Email-Worm.Win32.Klez.k
GData Win32.Trojan.PSE.15IDC91
Varist W32/Klez.E@mm
AhnLab-V3 Win32/Klez.worm.E
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.36680.eqX@a0x22tg
ALYac Win32.Klez.E@mm
TACHYON Worm/W32.Klez.80060
VBA32 Win32.HLLW.Klez.e
Cylance unsafe
Panda W32/Klez.F
TrendMicro-HouseCall WORM_KLEZ.GEN
Rising Worm.Klez!1.A1CB (CLASSIC)
Yandex Trojan.GenAsa!AMX6vz3TVj8
Ikarus Email-Worm.Win32.Klez.E
Fortinet W32/Klez.fam@mm
AVG Win32:Klez-E [Wrm]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_90% (D)

How to remove Win32/Klez.E?

  • 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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