Summary
Spybot.HS, a variant of Spybot, is a Trojan. Spybot.HS uses IRC networks to spread and has automatic updating capabilities. Spybot.HS steals certain information from an infected computer.
Removal
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
- Check for the latest database updates
First check if your F-Secure security program is using the latest updates, then try scanning the file again.
- Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
- Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
Technical Details
Spybot.HS allows control of a victims' computer remotely by sending specific commands via IRC channels. This backdoor can also steal data, spread to the local network, and to computers vulnerable to exploits.
It drops the following file upon execution:
- %Sysdir%\windows.exe - Copy of itself.
It will then pass the control over to the dropped file and delete itself after execution.
Spybot.HS also checks for the existence of the following mutex to ensure that there is only one instance of itself running in memory:
- 1337bot
Spybot.HS adds these registry value launch points:
- [HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices] InternetExplorer2 = %Sysdir%\windows.exe
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run]InternetExplorer2=%Sysdir%\windows.exe
It also adds the following registry entry as part of its installation routine:
- [HKEY_CURRENT_USER\Software\Microsoft\OLE] InternetExplorer2 = %Sysdir%\windows.exe
It also creates the following registry entry to allow itself to bypass the Windows Firewall:
- [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy \StandardProfile\AuthorizedApplications\List] %Sysdir%\windows.exe = "%Sysdir%\windows.exe:*:Enabled:InternetExplorer2"
Spybot.HS also connects to the following IRC server:
- ircds.windowsantivirussystem.org:3132
It then joins the following IRC channel:
- #nzm
Once connected, Spybot.HS awaits for commands from a remote user. It may perform the following backdoor operations:
- Acquire system information
- Download files from the Internet
- Execute/Delete files
- Perform IRC commands
- Search for vulnerabilities
- Terminate processes
- Update itself
This backdoor may spread through local networks by taking advantage of the following vulnerabilities:
- ASN.1 Vulnerability (MS04-007)
- DCOM RPC Vulnerability (MS03-026) TCP port 135.
- LSASS vulnerability (MS04-011) TCP port 445.
- Microsoft Windows Server Service Remote Buffer Overflow Vulnerability (MS06-040)
Spybot.HS is packed with ASProtect 2.1 and ASPack 2.12
More Support
Community
Ask questions in our Community.
User guides
Check the user guide for instructions.
Contact Support
Chat with with or call an agent.
Submit a Sample
Submit a file or URL for analysis.