W32/Tilebot-HF is a worm and IRC backdoor Trojan for the Windows platform.
W32/Tilebot-HF spreads to other network computers by exploiting common buffer overflow vulnerabilities, including: SRVSVC (MS06-040), LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812), PNP (MS05-039) and ASN.1 (MS04-007). The worm may also spreads via network shares and MSSQL servers protected by weak passwords.
W32/Tilebot-HF runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.
W32/Tilebot-HF includes functionality to access the internet and communicate with a remote server via HTTP.
W32/Tilebot-HF is a worm and IRC backdoor Trojan for the Windows platform.
W32/Tilebot-HF spreads to other network computers by exploiting common buffer overflow vulnerabilities, including: SRVSVC (MS06-040), LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812), PNP (MS05-039) and ASN.1 (MS04-007). The worm may also spread via network shares and MSSQL servers protected by weak passwords.
W32/Tilebot-HF runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.
W32/Tilebot-HF includes functionality to access the internet and communicate with a remote server via HTTP.
When first run W32/Tilebot-HF copies itself to <Windows>\realplayers.exe and creates the file <System>\rdriv.sys.
The file rdriv.sys is detected as Troj/Rootkit-W.
The file rdriv.sys is registered as a new system driver service named "rdriv", with a display name of "rdriv". Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\rdriv\
The file realplayers.exe is registered as a new system driver service named "trojans", with a display name of "this change me" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\trojans\
W32/Tilebot-HF sets the following registry entries, disabling the automatic startup of other software:
HKLM\SYSTEM\CurrentControlSet\Services\Messenger
Start
4
HKLM\SYSTEM\CurrentControlSet\Services\RemoteRegistry
Start
4
HKLM\SYSTEM\CurrentControlSet\Services\TlntSvr
Start
4
Additional registry entries are set as follows:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions
Installed Time Me
<Date and Time>
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions
Record Me
272962
HKLM\SOFTWARE\Microsoft\Security Center
AntiVirusDisableNotify
1
HKLM\SOFTWARE\Microsoft\Security Center
AntiVirusOverride
1
HKLM\SOFTWARE\Microsoft\Security Center
FirewallDisableNotify
1
HKLM\SOFTWARE\Microsoft\Security Center
FirewallOverride
1
HKLM\SOFTWARE\Microsoft\Security Center
UpdatesDisableNotify
1
HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate
DoNotAllowXPSP2
1
HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile
EnableFirewall
0
HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile
EnableFirewall
0
HKLM\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters
AutoShareServer
0
HKLM\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters
AutoShareWks
0
HKLM\SYSTEM\CurrentControlSet\Services\lanmanworkstation\parameters
AutoShareServer
0
HKLM\SYSTEM\CurrentControlSet\Services\lanmanworkstation\parameters
AutoShareWks
0
HKLM\SYSTEM\CurrentControlSet\Control\
WaitToKillServiceTimeout
7000
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1