high
Summary
Summary
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| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Protection available since | 20 March 2006 19:07:25 (GMT) |
| Detected by | All Sophos products |
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Action
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More Information
W32/Kassbot-M is a worm with backdoor functionality for the Windows platform.
W32/Kassbot-M 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/Kassbot-M spreads to other network computers by exploiting the buffer overflow vulnerabilities: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812), PNP (MS05-039) and ASN.1 (MS04-007) and by copying itself to network shares protected by weak passwords and AOL Instant Messenger.
W32/Kassbot-M includes functionality to access the internet and communicate with a remote server via HTTP. W32/Kassbot-M is a worm with backdoor functionality for the Windows platform.
W32/Kassbot-M 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/Kassbot-M spreads to other network computers by exploiting the buffer overflow vulnerabilities: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812), PNP (MS05-039) and ASN.1 (MS04-007) and by copying itself to network shares protected by weak passwords and AOL Instant Messenger.
W32/Kassbot-M includes functionality to access the internet and communicate with a remote server via HTTP.
When first run W32/Kassbot-M copies itself to <Windows folder>\JavaPlatform.
The file JavaPlatform is registered as a new service named "JavaPlatform64",with a display name of "JavaPlatform64. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\JavaPlatform64\
W32/Kassbot-M 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
Registry entries are set as follows:
HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate
DoNotAllowXPSP2
1
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1
Registry entries are created under:
HKLM\SOFTWARE\Microsoft\Security Center\
HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile\
HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile\
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