Troj/Mirseed-A is an IRC Trojan that spams IRC channels with the message "[Info] Speed up your mIRC DCC Transfer by up to 75% with DCC Speed-Up Tool, get it now at ww.freewebs.com/mircupdate/mircspeedup.exe -Regards, Network Staff".
The EXE referenced in the URL is Troj/Mirseed-A.
Troj/Mirseed-A copies itself to C:\sysexec.exe and sets the following registry entry:
System Root Configuration = C:\sysexec.exe
The Trojan also drops an IRC script into C:\memory.sys that it uses for spamming and logs onto certain predefined IRC channels.
Help, my PC with Windows 10 won't shut down properly
Since upgrading to Windows 10 my computer won't shut down properly. I use the menu button shutdown and the screen goes blank, but the system does not fully shut down. The only way to get it to shut down is to hold the physical power button down till it shuts down. Any suggestions?