W32/Nafbot-B is a worm for the Windows platform.
W32/Nafbot-B spreads via Peer-to-Peer file sharing services and removable floppy drives.
When first run W32/Nafbot-B copies itself to:
<Windows>\services.exe
<System>\DRIVERS32.com
<Windows>\temper\services.exe
and creates the following files:
<Root>\fsnapa.snp
<Root>\rsnapa.snp
<Windows>\ousr32.dll
These files may be safely deleted.
W32/Nafbot-B creates a number of registry entries in order to start itself on startup.
W32/Nafbot-B changes settings for Microsoft Internet Explorer by modifying values under:
HKCU\Software\Microsoft\Internet Explorer\Main\Start Page
Registry entries are set as follows:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableTaskMgr
0
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableChangePassword
0
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableRegistryTools
0
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableLockWorkstation
0
Registry entries are created under:
HKLM\SOFTWARE\Dark_syde_fish