TrojanDownloader:Win32/Zlob.gen!BI

System Changes

• The presence of the following registry value and data:
  Value: some
  With data: "<trojan folder>\wcm.exe"
  In subkey: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run
• The periodic display of any of the following messages:
• Fatal Error!
  Unhandled Exception: Invalid opertaion.
  The instruction at "0x66f7d450" referenced memory at "0x00000d0".
  If you were in the middle of something, you might lose the information
  you were working with.
  This fatal error probably occured because of a virus on your PC.
  Would you like to download latest version of antivirus software?
• Fatal Error!
  Your system is unprotected from new version of SpyBot@MXt trojan.
  SpyBot@MXt is a trojan horse that steals information and gathers
  email addresses from the compromised computer.
  Click OK to download antivirus software and pass system scan to
  delete/quarantine infected files.
• Security warning: New variant of SpyBot@MXt
  Your computer is infected with adware or spyware that displays
  advertisements while you browse the Internet.
  Would you like to download additional software to remove malware
  threats and protect your computer?
• Internet Explorer Alert!
  Your system is probably infected with latest version of Spyware.CyberLog-X.
• Critical System Warning!
  Your computer is infected with last version of PSW.x-Vir trojan. PSW trojans steal your private information such as: passwords, IP-address, credit card information, registration details, documents, etc.
  Click this baloon to remove PSW.x-Vir spyware.
• Security Alert: Spyware found
  Summary:
  System performance slowed down by: 47%
  Internet connection speed decreased by: 39%
  Probable reason: Spyware applications/Adware popup windows
  Click this baloon to download spyware scan tool to remove spyware/adware applications.