Categories: Malware

Win32.Prepender.Gen.2 (B) removal

The Win32.Prepender.Gen.2 (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.Prepender.Gen.2 (B) virus can do?

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • Reads data out of its own binary image
  • Performs some HTTP requests
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • Checks for the presence of known windows from debuggers and forensic tools
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Likely virus infection of existing system binary
  • Detects VirtualBox through the presence of a registry key
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Creates a slightly modified copy of itself
  • Anomalous binary characteristics

Related domains:

wtqq.net

How to determine Win32.Prepender.Gen.2 (B)?


File Info:

crc32: BF2EE993md5: b90a2c93616bfdde4acc0ba15707a695name: B90A2C93616BFDDE4ACC0BA15707A695.mlwsha1: 71a9f47c13d5fcc857e61311138ae026715d75d8sha256: 273766d6f102f412f404e733ad3bbfe1ac6075fabd7fdc2ebf9ec84bcb633b1esha512: 22016cf8e9cdcadb2ddef9305621f1822e1858e3d77988a61c8f259e03f69b27ee987451a9d1f9e303ede3b0a75519ef525e7045c6b779054a934f429f8e67e3ssdeep: 12288:cFIbheWrs+y9yJ5b0Jq132Zv+iMlKKo+x7w5iz2561lvL:cKlO+YJq13iv+Jo+xs9KlvLtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: x4f5cx8005x7248x6743x6240x6709 x8bf7x5c0ax91cdx5e76x4f7fx7528x6b63x7248FileVersion: 1.0.0.0Comments: x672cx7a0bx5e8fx4f7fx7528x6613x8bedx8a00x7f16x5199(http://www.eyuyan.com)ProductName: x6613x8bedx8a00x7a0bx5e8fProductVersion: 1.0.0.0FileDescription: x6613x8bedx8a00x7a0bx5e8fTranslation: 0x0804 0x04b0

Win32.Prepender.Gen.2 (B) also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Win32.HLLP.Yeli.1
CAT-QuickHeal W32.Agent.E13
ALYac Win32.Prepender.Gen.2
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0040f54a1 )
K7GW Trojan ( 0040f54a1 )
Cybereason malicious.3616bf
Cyren W32/Pidgeon.A.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Pidgeon.A
APEX Malicious
Avast Win32:Crypt-HXB [Drp]
Cynet Malicious (score: 100)
Kaspersky Virus.Win32.Agent.ev
BitDefender Win32.Prepender.Gen.2
NANO-Antivirus Virus.Win32.Agent.dvixmz
MicroWorld-eScan Win32.Prepender.Gen.2
Tencent Virus.Win32.Pidgeon.a
Ad-Aware Win32.Prepender.Gen.2
Sophos ML/PE-A + W32/Pidgeon-A
Comodo Backdoor.Win32.Hupigon.OHMP@4plqhq
BitDefenderTheta AI:FileInfector.E7846EA915
VIPRE Virus.Win32.Pidgeon.a (v)
McAfee-GW-Edition BehavesLike.Win32.Generic.bh
FireEye Generic.mg.b90a2c93616bfdde
Emsisoft Win32.Prepender.Gen.2 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Packed.muka
Antiy-AVL Trojan/Generic.ASBOL.C50C
Microsoft Virus:Win32/Pidgeon.A
ZoneAlarm Packed.Multi.MultiPacked.gen
GData Win32.Application.PUPStudio.A
AhnLab-V3 Win32/Pidgeon.X1598
Acronis suspicious
McAfee Flyagent.d
MAX malware (ai score=89)
VBA32 Trojan-Downloader.EIC.7121
Malwarebytes PUP.Optional.ChinAd
Panda Trj/Genetic.gen
Rising Packer.Win32.Agent.g (CLASSIC)
Yandex Trojan.GenAsa!Z47i8t73fdw
Ikarus Virus.Win32.Agent
MaxSecure Virus.W32.Lamer.CL
Fortinet W32/CoinMiner.BELF!tr
AVG Win32:Crypt-HXB [Drp]

How to remove Win32.Prepender.Gen.2 (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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