About “WebToolbar.WhenU” infection

The WebToolbar.WhenU 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 WebToolbar.WhenU virus can do?

• Executable code extraction
• Possible date expiration check, exits too soon after checking local time
• Creates RWX memory
• A process attempted to delay the analysis task.
• Attempts to connect to a dead IP:Port (14 unique times)
• Reads data out of its own binary image
• Drops a binary and executes it
• Performs some HTTP requests
• Network activity contains more than one unique useragent.
• Installs itself for autorun at Windows startup

Related domains:

How to determine WebToolbar.WhenU?

File Info:
crc32: 1A947B68
md5: d42fcffb023d13bcbe62ef777f018701
name: mahjongpsetup.exe
sha1: 11e500f4ae31e5c4d448c788955060aac54b630d
sha256: 64689ce4cddbeb843aa7dd3a6660d0be114d5fee80f72b4e5bda0f6eb4f45fc9
sha512: 0b8a9315d5a432680b0c043c872a69ce6c723638743d730e22eea42413e96b27ec21961bfd0478586433a556f7f5df374eac4f1c0a4a63a7b3c38c69a101e4f5
ssdeep: 98304:edGcJ68iabKg+I4LYEX2fkpPKFXRgCCzlARnfmoxqdTr/8HHoVb1:io3ayfSDgSVfnIHkHmJ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:
LegalCopyright: Copyright xa9 2006 MyPlayCity.com                                                                     
FileDescription: Free Mahjong Planet Setup                                   
FileVersion:                     
Comments: This installation was built with Inno Setup: http://www.innosetup.com
CompanyName: MyPlayCity.com                                              
Translation: 0x0409 0x04e4

WebToolbar.WhenU also known as:

How to remove WebToolbar.WhenU?

• 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.