W32/Fujacks-B is an attempted virus and worm with backdoor functionality for the Windows platform.
W32/Fujacks-B spreads to other network computers through available network shares and removeable storage devices with the filenames GameSetup.exe and setup.exe correspondingly. W32/Fujacks-B also creates the file autorun.inf to insure that the file setup.exe is executed.
W32/Fujacks-B runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer.
W32/Fujacks-B includes functionality to access the internet and communicate with a remote server via HTTP.
W32/Fujacks-B may change HTML files. Modified files are detected as Troj/Psyme-DO.
When first run W32/Fujacks-B copies itself to <System>\drivers\spoclsv.exe.
The following registry entry is created to run spoclsv.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
svcshare
<System>\drivers\spoclsv.exe
The following registry entry is set:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\
Advanced\Folder\Hidden\SHOWALL
CheckedValue
0