| Port No | 113 |
| Service Name | Win32.DSNX |
| RFC Doc | 0 |
| Protocol | TCP |
| Description | This backdoor program arrives via an email supposedly containing a link to a Windows update site. However, the link actually points to a Web site, which automatically downloads and installs this malware into the system.
Upon execution, it drops and then executes a copy of itself in the Windows system folder using any of the following filenames: WIN It comes with a built-in Internet Relay Chat (IRC) client, which allows it to connect to an IRC channel. It connects to a predefined port and enables a remote user to perform the following actions: Create a proxy server on the infected machine Delete, download, execute, obtain the MD5 of, and upload files Flood a specified IP address Load program plugins Log keystrokes Perform a port scan on the local network Perform basic IRC commands Redirect TCP traffic in a port to a remote site Terminate and uninstall the program Visit URLs |
| Reference Link | Win32.DSNX |
| Attack | Solution: This procedure terminates the running malware process. You will need the name(s) of the file(s) detected earlier. Open Windows Task Manager. • On Windows 95, 98, and ME, press CTRL+ALT+DELETE On Windows NT, 2000, and XP, press CTRL+SHIFT+ESC, then click the Processes tab. In the list of running programs*, locate the malware file(s) detected earlier. Select one of the detected files, then press either the End Task or the End Process button, depending on the version of Windows on your system. Do the same for all detected malware files in the list of running processes. To check if the malware process has been terminated, close Task Manager, and then open it again. Close Task Manager. *NOTE: On systems running Windows 95, 98, and ME, Windows Task Manager may not show certain processes. You can use a third party process viewer such as Process Explorer to terminate the malware process. Otherwise, continue with the next procedure, noting additional instructions. |
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