The following instructions have been created to help you to get rid of "Win32.AiChast" manually.
Use this guide at your own risk; software should usually be better suited to remove malware, since it is able to look deeper.

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Threat Details:

Categories:
  • trojan

Description:
Win32.AiChast is an installer package created with AutoIt v3. The installer uses UPX packing to compress the content data. Once run the program extracts itself and and drops files to the temp and Windows directories. It creates autorun entries and connects to remote web servers in the background. It claims to be a marketing or hack tool for Facebook.
Removal Instructions:

Files:

Important: There are more files that cannot be safely described in simple words. Please use Spybot-S&D to remove them.

Final Words:

If neither Spybot-S&D nor self help did resolve the issue or you would prefer one on one help,
  1. Please read these instructions before requesting assistance,
  2. Then start your own thread in the Malware Removal Forum where a volunteer analyst will advise you as soon as available.