Categories: PUA

How to remove “PUP.Optional.Hao123”?

The PUP.Optional.Hao123 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 PUP.Optional.Hao123 virus can do?

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (4 unique times)
  • Presents an Authenticode digital signature
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Reads data out of its own binary image
  • A process created a hidden window
  • Attempts to modify Internet Explorer’s start page
  • Drops a binary and executes it
  • 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.
  • The executable is compressed using UPX
  • Uses Windows utilities for basic functionality
  • Tries to unhook or modify Windows functions monitored by Cuckoo
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
  • Steals private information from local Internet browsers
  • Installs itself for autorun at Windows startup

Related domains:

ocsp.verisign.com
csc3-2010-crl.verisign.com
dl.client.baidu.com

How to determine PUP.Optional.Hao123?


File Info:

crc32: C919FB1Cmd5: 324b775b0fba4b9ecc032f20d450de51name: hao123inst-thailand-etype.exesha1: 8c874d77ed9c506acd76b87532a5bf851c61ab33sha256: 26d9794bf4e9d647c28764e74afa4546335bf425d705dd32faf57af6f7b8a48esha512: 4a781c9794d00288ba7071cce8c5205913dd4b113684b7f94bad650bfbbb48b4412850c33b754ba83288c9ec2829098f518f4c6ff1b81a5cc086771bdb4c02afssdeep: 6144:yMOV3HpTrzeBrlhxzeYV3ivAecRVmZmQU2NpGZ50A:bUfze9heyyvmg+2rAtype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: (C) 2011 Baidu.comx3002All Rights Reserved.InternalName: hao123Inst.exeFileVersion: 1.0.0.1106CompanyName: Baidu.comProductName: hao123 Desktop ShortcutProductVersion: 1.0.0.1106FileDescription: hao123 Desktop ShortcutOriginalFilename: hao123Inst.exeTranslation: 0x0804 0x03a8

PUP.Optional.Hao123 also known as:

Bkav W32.HfsAdware.39A3
McAfee Artemis!324B775B0FBA
Cylance Unsafe
K7AntiVirus Adware ( 004c43921 )
K7GW Adware ( 004c43921 )
TotalDefense Win32/PackedBaidu
APEX Malicious
Kaspersky Trojan.Win32.StartPage.vhzu
Alibaba Trojan:Win32/StartPage.92b60341
NANO-Antivirus Riskware.Win32.Hao123.djagiv
ViRobot Adware.Hao123.292304
Comodo Malware@#1plhedvf3uwi6
DrWeb Trojan.StartPage1.27027
Emsisoft Application.Optional (A)
Jiangmin AdWare.Tahao.w
Antiy-AVL Trojan/Win32.BTSGeneric
SUPERAntiSpyware PUP.Hao123/Variant
ZoneAlarm Trojan.Win32.StartPage.vhzu
VBA32 BScope.Trojan.StartPage
Malwarebytes PUP.Optional.Hao123
ESET-NOD32 a variant of Win32/Hao123.D potentially unwanted
Yandex Riskware.Agent!
eGambit Unsafe.AI_Score_99%
Fortinet Riskware/Hao123

How to remove PUP.Optional.Hao123?

  • 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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