VirusW32/SDBot.1!worm
Analysis
- Copies itself to the System folder as update.exe.
Registry Modification
- Adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Configuration Loader = "update.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Configuration Loader = "update.exe"
Other Behavior
- Connects to the one of the following Internet Relay Chat (IRC) servers:
- irc.undernet.org
- LosAngeles.CA.US.Undernet.org
- Oslo1.NO.EU.undernet.org
on one of the following channels:
- #DRX-ARMY
- #DRX-ARMY2
When connected, it listens for commands that allow the remote attacker to perform any of the following actions:
- Download files
- Send UPD, ICMP, and SYN packets to specified servers
- Send information such as the following:
- CPU type
- Total RAM
- Available RAM
- OS version
- User name
Recommended Action
- FortiGate Systems
- Check the main screen using the web interface for your FortiGate unit to ensure that the latest AV/NIDS database has been downloaded and installed on your system - if required, enable the 'Allow Push Update' option.
FortiClient Systems
- Quarantine/delete files that are detected and replace infected files with clean backup copies.
Telemetry
Detection Availability
| FortiGate | |
|---|---|
| Extended | |
| FortiClient | |
| FortiMail | |
| FortiSandbox | |
| FortiWeb | |
| Web Application Firewall | |
| FortiIsolator | |
| FortiDeceptor | |
| FortiEDR |