Should I remove “PUP.Optional.Qihoo”?

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

• Sample contains Overlay data
• Drops a binary and executes it
• Unconventionial binary language: Chinese (Simplified)
• Unconventionial language used in binary resources: Chinese (Simplified)
• The binary likely contains encrypted or compressed data.
• Authenticode signature is invalid
• CAPE detected the shellcode patterns malware family
• Attempted to write directly to a physical drive
• Attempts to modify proxy settings
• Deletes executed files from disk
• Attempts to create or modify system certificates
• Anomalous binary characteristics
• Yara detections observed in process dumps, payloads or dropped files

How to determine PUP.Optional.Qihoo?

File Info:
name: FA6D1E7740CD19A8DBE9.mlw
path: /opt/CAPEv2/storage/binaries/a212f9b378302d631fce49ff845211b1d3d2914a6d4cc5b516dea139b55a4c3a
crc32: 6D04A668
md5: fa6d1e7740cd19a8dbe9ee599b0db457
sha1: 011c2c3e1d4f841e93d7c742ffab5b2d828d2cef
sha256: a212f9b378302d631fce49ff845211b1d3d2914a6d4cc5b516dea139b55a4c3a
sha512: 0abf918ead437e8db13f7cc9e17357b6331926ac827e542c1bb7abd448336daf063409113035eea73c07b43fe34ef58033bb918776ff2931d039f6443c067ca3
ssdeep: 98304:LpLE90Ta7PG5o2/JUqf7W1DSWCLT5S6SNZOreOa5:2932puiSeSOG
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1DD3602117982C032DAB220F1997CD66A45ADBD700F7251CB93D82B7E5E709C3AF35A1B
sha3_384: eb8140243240b444e72340c09bcabbf79674e6c56455644bdb1a03d83ed1125f665be0e3f4eaf1b9c7714069561eed63
ep_bytes: e8fa050000e925feffffcccccccccc53
timestamp: 2021-01-08 12:36:21

Version Info:
CompanyName: www.ludashi.com
FileDescription: 鲁大师安装程序
FileVersion: 5.1021.1300.108
InternalName: ludashi.exe
LegalCopyright: Copyright (C) 2011-2020 www.ludashi.com
OriginalFilename: ludashi.exe
ProductName: 鲁大师
ProductVersion: 5.1021.1300.108
Translation: 0x0804 0x04b0

PUP.Optional.Qihoo also known as:

How to remove PUP.Optional.Qihoo?

• 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.