Categories: Malware

Should I remove “MSIL/WebCompanion.C potentially unwanted”?

The MSIL/WebCompanion.C potentially unwanted 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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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.
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What MSIL/WebCompanion.C potentially unwanted virus can do?

  • Executable code extraction
  • 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
  • Drops a binary and executes it
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Attempts to identify installed AV products by installation directory
  • Checks the version of Bios, possibly for anti-virtualization
  • Checks the CPU name from registry, possibly for anti-virtualization
  • Collects information to fingerprint the system
  • Anomalous binary characteristics

Related domains:

z.whorecord.xyz
s2.symcb.com
a.tomx.xyz
s1.symcb.com
sv.symcd.com
sv.symcb.com
wc-tracking.lavasoft.com

How to determine MSIL/WebCompanion.C potentially unwanted?


File Info:

crc32: B9C4B8B1md5: a7ae0b236749d86ee0a6e4f113cc050ename: WCInstaller.exesha1: 5257ce8707aed7dbbab0a2fa8f9c2d2dc737b917sha256: c729e5bd0bc18dd2d3055eb811cd27c97dafbba214b8edd64acc46c62ead0e3dsha512: 2e683e0f6034b8226b83541012321704a6091e8db7984ce8b4172e517fdb6ce5f0fd0ef9331647d7c3a2ad19dc0b59fc442cb31da9cb2a25221c6e1fc3ee8bfassdeep: 12288:Z1OgLdaJvprKl1OYL0BkdkQBUhlakmhWt:Z1OYdaLriPo+9BU/Y8ttype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: c Lavasoft Limited. All Rights Reserved.InternalName: Installer.exeFileVersion: 4.9.2159.4024CompanyName: LavasoftProductName: Web Companion InstallerProductVersion: 4.9.2159.4024FileDescription: Web Companion InstallerOriginalFilename: Installer.exeTranslation: 0x0409 0x04b0

MSIL/WebCompanion.C potentially unwanted also known as:

Cylance Unsafe
TrendMicro PUA.MSIL.WebCompanion.AB
ESET-NOD32 a variant of MSIL/WebCompanion.C potentially unwanted
TrendMicro-HouseCall PUA.MSIL.WebCompanion.AB
Rising PUF.WebCompanion!8.9E98 (CLOUD)
DrWeb Program.Unwanted.3914
Sophos Generic PUA FC (PUA)
Cyren W32/Trojan.SVDY-7953
Antiy-AVL GrayWare/Win32.Presenoker
Microsoft PUA:Win32/Puasson.A!ml
Paloalto generic.ml

How to remove MSIL/WebCompanion.C potentially unwanted?

  • 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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