How do I check to see if my computer is infected with the OSX/Crisis Trojan?
Apparently, Intego has been investigating this trojan and has found that the trojan will only be on your machine if the following folder exists:

/Library/ScriptingAdditions/appleHID/

If it was installed with admin privileges, this files/folders will exist:


/System/Library/Frameworks/Foundation.framework/XPCServices/
/System/Library/Frameworks/Foundation.framework/XPCServices/com.apple.mdworker_server.xpc/Contents/MacOS/com.apple.mdworker_server
/System/Library/Frameworks/Foundation.framework/XPCServices/com.apple.mdworker_server.xpc/Contents/Resources/
/Library/ScriptingAdditions/appleHID/Contents/Resources/appleOsax.r


These files ping the IP address 176.58.100.37 every 5 minutes. It currently doesn't do anything, but at any point the trojan could activate and potentially cause problems. Intego also reports that Mountain Lion is not affected by the trojan. Intego's VirusBarrier will remove the trojan.