JS_SHELLCODE.BH can be acquired by computer users who visited a malicious websites. JS_SHELLCODE.BH can infect computers by exploiting the Microsoft Office Web Components vulnerability.

TROJ_JPEGDRPR.B can be downloaded by just visiting a website with malicious script. TROJ_JPEGDRPR.B can also be acquired if the computer is infected with another malware called WORM_MYDOOM.EA.

TROJ_FFSEARCH.A is a trojan that can be dropped onto the computer by another threats. TROJ_FFSEARCH.A will monitor web browsing activities on the compromised computer and can redirect Google searches to a predefined websites.

WORM_MYDOOM.EA (aka Korea/US DDoS bot)  is a worm that propagates in different means, one as an attached file on a spam email messages. WORM_MYDOOM.EA can also infect computers via web browser exploits and dropped by another trojan which can be unintentionally downloaded by visiting malicious websites. This malware is responsible for the latest DDoS attack [...]

WORM_WALEDAC.DU is a deadly worm that will arrive as an spam email messages sent on victims via mass-mailing. When the email with link got executed by the reciepient, WORM_WALEDAC.DU will download additional malware located from a remote website and will further endanger the compromised computer.

Gray_Sml.2×1405 is a generic detection for a trojan that will lead computer users into downloading of a fake Windows codec. Gray_Sml.2×1405 can also perform its other payload such as redirecting of Internet Explorer to a malicious websites and displaying of popup messages.

“Picture can not be displayed” is a popup message generated by WORM_IRCBOT.GAT. The full message of the box states:
Windows Microsoft Viewer
Picture can not be displayed

WORM_IRCBOT.GAT is a worm that will create its own registry entry to enable its automatic execution when Windows is started. WORM_IRCBOT.GAT spreads by utilizing a website with malicious script and also on messenger applications which send malicious links to a contact list found on compromised computer.

WORM_BLAZEBOT.A is a worm that may download another malware from specified URL. Upon penetration, WORM_BLAZEBOT.A will listen and execute a commands from a remote computer.

OSX_JAHLAV.B is a detection for trojan that was authored specifically for the Mac OS X systems. OSX_JAHLAV.B will disguise as a necessary Video ActiveX component required to play certain multimedia files. It will also connect to a remote website and download additional malware.