| Port No | 4156 |
| Service Name | APACHE |
| RFC Doc | 0 |
| Protocol | UDP |
| Description | This Linux Trojan is a malicious tool that exploits a vulnerability in the Apache web server. The vulnerability, which affects systems affects systems running Apache versions 1.3 to 1.3.24 and versions 2.0 to 2.0.36, is described in the following document:
http://httpd.apache.org/info/security_bulletin_20020620.txt This Trojan adds a user named "hakr" with root privileges to vulnerable systems. It also allows remote users to execute shell commands on vulnerable systems. |
| Reference Link | APACHE |
| Attack | Solutions: Applying Patches This malware exploits a known vulnerability in the Apache web server. It affects Linux systems running Apache version 1.3 to 1.3.24 and versions 2.0 to 2.0.36. Upgrading to later versions of Apache web server will address the vulnerability. Removing Added User Open the /etc/passwd file and delete the following line: hakr::0:0::/:/bin/sh The line is located either at the end or near the end of the file. |
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