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.

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: 1A947B68md5: d42fcffb023d13bcbe62ef777f018701name: mahjongpsetup.exesha1: 11e500f4ae31e5c4d448c788955060aac54b630dsha256: 64689ce4cddbeb843aa7dd3a6660d0be114d5fee80f72b4e5bda0f6eb4f45fc9sha512: 0b8a9315d5a432680b0c043c872a69ce6c723638743d730e22eea42413e96b27ec21961bfd0478586433a556f7f5df374eac4f1c0a4a63a7b3c38c69a101e4f5ssdeep: 98304:edGcJ68iabKg+I4LYEX2fkpPKFXRgCCzlARnfmoxqdTr/8HHoVb1:io3ayfSDgSVfnIHkHmJtype: 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.comCompanyName: 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.