Categories: Malware

Win32/Webprefix.B information

The Win32/Webprefix.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 Win32/Webprefix.B virus can do?

  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Authenticode signature is invalid

How to determine Win32/Webprefix.B?


File Info:

name: 286A4A2BD8C994574A77.mlwpath: /opt/CAPEv2/storage/binaries/4447eed98063996a5f839cf209c14d21f60bab21e956282abf2966dd34732cfecrc32: C3CD8C3Dmd5: 286a4a2bd8c994574a77a6e03a8ea8dbsha1: 891f583e50ff0a6ceddd32877065a709428269d3sha256: 4447eed98063996a5f839cf209c14d21f60bab21e956282abf2966dd34732cfesha512: 5d2d6701f0614f5cd149c8ff9720ad6a6682252f35339c8770227592a29fe9c8a24c176497a144debea0a9a3416a8ea72f3627127c6759c91c5780d428a6c1f4ssdeep: 1536:QOEM4FVSeodFDMXA2CQerI2JAvStJ0VRnAvoEmR3io3e:rEqeAmX1eh8nAvorR3J3etype: PE32 executable (console) Intel 80386, for MS Windowstlsh: T144A38D2178D5C472E23400F54CA2C6A7DA1AFD340A671DCB3FDB06A86F79597CA29307sha3_384: 6ea66aa9ac86e5ab9bdcf8c09e7ae60df027dc8eac9dd48a37e6b6703965298af1a68ea264fe29f2f6c34813a71423faep_bytes: e8403e0000e9a4feffff558bec83ec04timestamp: 2013-06-13 13:39:15

Version Info:

Comments: CompanyName: FileDescription: FileVersion: 1.0InternalName: LegalCopyright: LegalTrademarks: OriginalFilename: PrivateBuild: ProductName: ProductVersion: SpecialBuild: Translation: 0x0409 0x04b0

Win32/Webprefix.B also known as:

tehtris Generic.Malware
MicroWorld-eScan Gen:Variant.Cerbu.146680
Cylance Unsafe
VIPRE Gen:Variant.Cerbu.146680
K7AntiVirus Trojan ( 004791aa1 )
K7GW Trojan ( 004791aa1 )
Cybereason malicious.bd8c99
VirIT Trojan.Win32.Atros.RIN
Cyren W32/Webprefix.B.gen!Eldorado
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Webprefix.B
APEX Malicious
Cynet Malicious (score: 99)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Cerbu.146680
NANO-Antivirus Trojan.Win32.GFilter.dflxvs
Avast FileRepMalware [PUP]
Tencent Malware.Win32.Gencirc.10bb9e35
Ad-Aware Gen:Variant.Cerbu.146680
Sophos Generic ML PUA (PUA)
Trapmine malicious.high.ml.score
FireEye Generic.mg.286a4a2bd8c99457
Emsisoft Gen:Variant.Cerbu.146680 (B)
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Cerbu.146680
Jiangmin Trojan/Generic.bhypw
Avira ADWARE/GFilter.Gen2
Antiy-AVL Trojan/Generic.ASMalwS.330C
Arcabit Trojan.Cerbu.D23CF8
Microsoft Trojan:Win32/Wacatac.B!ml
Google Detected
ALYac Gen:Variant.Cerbu.146680
MAX malware (ai score=82)
VBA32 BScope.Trojan.Pynamer
Malwarebytes Malware.AI.4243183934
Rising Trojan.Webprefix!8.979 (TFE:5:a3QZAqgnM9G)
Yandex Trojan.Webprefix!68vLb+66y0k
Ikarus Trojan.SuspectCRC
MaxSecure Trojan.Malware.2588.susgen
Fortinet W32/Generic.AC.3C6FAF!tr
AVG FileRepMalware [PUP]
CrowdStrike win/grayware_confidence_60% (D)

How to remove Win32/Webprefix.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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