| Port No | 139 |
| Service Name | PE_NIMDA |
| RFC Doc | 0 |
| Protocol | TCP |
| Description | PE_NIMDA.E is a fast-spreading Internet worm and file infector that arrives via email, as an attachment called SAMPLE.EXE. It employs several infection mechanisms and exploits several known vulnerabilities. Similar to the original variant, PE_NIMDA.A, it has four modes of propagation: through email, through network shared drives, through unpatched IIS servers, and through file infection. The main difference beween this variant and PE_NIMDA.A are the names of three of its dropped files. However, similar to the original variant, the name of the dropped executables are names of valid system files. |
| Reference Link | PE_NIMDA |
| Attack | Solution: This procedure terminates the running malware process from memory. You will need the name(s) of the file(s) detected earlier. Open Windows Task Manager. On Windows 9x/ME systems, press CTRL+ALT+DELETE On Windows NT/2000/XP systems, press CTRL+SHIFT+ESC, and click the Processes tab. In the list of running programs*, locate the malware file (LOAD.EXE) or files detected earlier. Select one of the detected files or LOAD.EXE, and 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 9x/ME, Task Manager may not show certain processes. You may use a third party process viewer to terminate the malware process. Otherwise, continue with the next procedure, noting additional instructions. |
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