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10/22/25
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Comment on [#9420] ModSecurity Access denied with code 503 on shell.png
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> Change silver theme image name "shell.png" to avoid Modsecurity big logs with > > Generic Attempt to run rootkit > > ModSecurity: Access denied with code 503 (phase 2). Pattern match > "/(?:(?:linuxdaybot|suntzu|shell_vup|shell|(?:o|0|p)wn(?:e|3)d|xpl|ssh2?|too20|backdoor|terminatorx-?exp)\\.(?:dat|gif|jpe?g|png|sh|txt|bmp|dat|txt|js|s?html?|tmp|php(?:3|4|5)?|asp)|(?:r57|fx29|c(?:99|100))\\.(?:txt|php))" > at > > WAF Rules: Possible Rootkit attack: Generic Attempt to run rootkit"] > [data "/shell.png"] [severity "CRITICAL" > > For the file .../horde/themes/silver/graphics/shell.png > > YES, a perfectly normal file no problem, however names in modsecurity > give allerts in ModSecurity if installed on an Apache server > > A quickfix would be to rename the file from shell.png to e.g. > shll.png and theme code referring to the name.
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