We've come across a strange virus/malware issue with some of our XP workstations on our network (our Windows 7 and Server 2003 machines are unaffected). It appears to have something to do with the conime.exe file. First sign is a slowdown in internet/network responses. In task manager, the processes are jumping all over the place and bouncing up and down between 25-100% of CPU usage. The C:\windows\system32\drivers\etc\hosts file then becomes bloated to over 4mb in size with a bunch of unintelligible text and will not allow access to be edited (it can be deleted however). Other signs include the inability to boot to safe mode and, in our case, our AVG a/v becomes unusable. Nothing seems to detect this infection, including Malwarebytes, Windows Defender, etc. Any thoughts would be appreciated.