PUA

PUP.Optional.WebCompanion removal

Malware Removal

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.

GridinSoft Anti-Malware

Gridinsoft Anti-Malware

Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
6-day free trial available.

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
  • Drops a binary and executes it
  • 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: 370B6024314F752F6011.mlw
path: /opt/CAPEv2/storage/binaries/b25d8bef4b94a71cb78ba4f6b93a77ea5300c61893efd56b89c28ea74d2a1b23
crc32: 34413C69
md5: 370b6024314f752f6011224ac9a45248
sha1: 3180590e0cf968e1362736bd198e919b70f8dd2d
sha256: b25d8bef4b94a71cb78ba4f6b93a77ea5300c61893efd56b89c28ea74d2a1b23
sha512: a28a3bcc7e670a2e87f4bbd1a2f4d72913d48d62dbeb07d18f6979a9d7d253bc18d72e19035e71aa47526b976337bab53c772f2fd980008ed200c8f90d1d283b
ssdeep: 12288:pG5knZfFKern6pW21Cg/f35Q5911xbBBKTYGXYm4FYoZHYtIKU:pG50ZfFKU6w21XX3EN3K3J4DgIKU
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1D9C4F1127EE189BAD5420131C974AFE5E2F5FE161E21946333993E3E3F3A542C132A5E
sha3_384: dc5b9b76a192490157ee63db7d20154733c18224fc4c3158d5805e78d3688c1c6d6e48ec59fc214740f08e98c85d6303
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:

Elasticmalicious (high confidence)
DrWebProgram.Unwanted.5275
MalwarebytesPUP.Optional.WebCompanion
K7AntiVirusUnwanted-Program ( 0056626f1 )
K7GWUnwanted-Program ( 0056626f1 )
ESET-NOD32a variant of MSIL/WebCompanion.C potentially unwanted
CynetMalicious (score: 100)
SophosGeneric ML PUA (PUA)
WebrootW32.Adware.Gen
XcitiumApplicUnwnt@#mmrz3rr8cofd
GDataMSIL.Application.Agent.1ISEDA
VaristW32/ABRisk.BXQT-2333
Cylanceunsafe
FortinetRiskware/WebCompanion
DeepInstinctMALICIOUS
CrowdStrikewin/grayware_confidence_70% (D)

How to remove PUP.Optional.WebCompanion?

PUP.Optional.WebCompanion removal tool
  • 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.

About the author

Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

Leave a Comment