PUP.Optional.WebCompanion removal guide

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

• Sample contains Overlay data
• Presents an Authenticode digital signature
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• The binary contains an unknown PE section name indicative of packing
• Authenticode signature is invalid
• Anomalous binary characteristics

How to determine PUP.Optional.WebCompanion?

File Info:
name: 83FE0F69A4D426EE4D6B.mlw
path: /opt/CAPEv2/storage/binaries/a94744be9070558de9985f791a509d22bf2659d4ae63148d24fc4dd99945c8b2
crc32: EBC190A5
md5: 83fe0f69a4d426ee4d6bfc4717bde8c9
sha1: 86c967fb8ed9ac7dfdd0128114d6ffa51af10e8a
sha256: a94744be9070558de9985f791a509d22bf2659d4ae63148d24fc4dd99945c8b2
sha512: 25bb2a84c8cab408e6f4f3c8763b7536d42c358c827bf78ada861e91cc189b14c2ac27cb3904b022f9228a667bddc25f17c8999b4c1bc99f5088aed5bb755efe
ssdeep: 12288:vG5knZfFKerW6pW21Cg/f35Q5911xbBBKTYGXYm4FYoZHYtINz:vG50ZfFKUtw21XX3EN3K3J4DgINz
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1C7C4F1127EE189BAD5420131C974AFE5E2F6FE161E21546333993E3E3F3A542C132A5E
sha3_384: d3b9e05f8b10df2c9c7a6c6ff064dc71a64b10df813bdbd6e1b0f0cac4151d4f9aab7ce26131a57047f9de6b5a4f9b1f
ep_bytes: 558bec6aff68e8b9410068fc47410064
timestamp: 2011-04-18 18:54:06

Version Info:
FileVersion: 11.908.5.907
ProductVersion: 11.908.5.907
CompanyName: Lavasoft
FileDescription: Web Companion Installer
InternalName: Installer.exe
LegalCopyright: c Lavasoft Limited. All Rights Reserved.
OriginalFilename: Installer.exe
ProductName: Web Companion Installer
Translation: 0x0409 0x04b0

PUP.Optional.WebCompanion also known as:

How to remove PUP.Optional.WebCompanion?

• 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.