diff options
| -rw-r--r-- | malwares.yara | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/malwares.yara b/malwares.yara index 5bf6dd3..dd656ef 100644 --- a/malwares.yara +++ b/malwares.yara | |||
| @@ -57,10 +57,10 @@ private rule CloudFlareBypass | |||
| 57 | rule ObfuscatedPhp | 57 | rule ObfuscatedPhp |
| 58 | { | 58 | { |
| 59 | strings: | 59 | strings: |
| 60 | $eval = /[;{}]*[\t ]*@?(eval|preg_replace|system|exec|assert|passthru|win_shell_execute)\(/ // ;eval( <- this is dodgy | 60 | $eval = /(<\?php\s*\n*\r*|[;{}])\s*@?(eval|preg_replace|system|exec|assert|passthru|win_shell_execute)/ // ;eval( <- this is dodgy |
| 61 | $b374k = "'ev'.'al'" | 61 | $b374k = "'ev'.'al'" |
| 62 | $align = /(\$\w+=[^;]*)*;\$\w+=@?\$\w+\(/ //b374k | 62 | $align = /(\$\w+=[^;]*)*;\$\w+=@?\$\w+\(/ //b374k |
| 63 | $oneliner = /<\?php\s*\n*\r*\s*(eval|preg_replace|system|exec|assert|passthru|win_shell_execute)\(/ | 63 | $oneliner = /<\?php\s*\n*\r*\s*@?(eval|preg_replace|system|exec|assert|passthru|win_shell_execute)\(/ |
| 64 | $weevely3 = /\$\w=\$[a-zA-Z]\('',\$\w\);\$\w\(\);/ // weevely3 launcher | 64 | $weevely3 = /\$\w=\$[a-zA-Z]\('',\$\w\);\$\w\(\);/ // weevely3 launcher |
| 65 | $c99_launcher = /;\$\w+\(\$\w+(,\s?\$\w+)+\);/ // http://bartblaze.blogspot.fr/2015/03/c99shell-not-dead.html | 65 | $c99_launcher = /;\$\w+\(\$\w+(,\s?\$\w+)+\);/ // http://bartblaze.blogspot.fr/2015/03/c99shell-not-dead.html |
| 66 | $strange_arg = /\${\$[0-9a-zA-z]+}/ | 66 | $strange_arg = /\${\$[0-9a-zA-z]+}/ |
| @@ -203,7 +203,6 @@ rule DodgyStrings | |||
| 203 | $ = "uname -a" fullword | 203 | $ = "uname -a" fullword |
| 204 | $ = "warez" fullword nocase | 204 | $ = "warez" fullword nocase |
| 205 | $ = /(reverse|web)\s*shell/ nocase | 205 | $ = /(reverse|web)\s*shell/ nocase |
| 206 | $ = /\t{16,}?/ /* a lot of spaces */ | ||
| 207 | 206 | ||
| 208 | $vbs = /language\s*=\s*vbscript/ nocase | 207 | $vbs = /language\s*=\s*vbscript/ nocase |
| 209 | $asp = "scripting.filesystemobject" nocase | 208 | $asp = "scripting.filesystemobject" nocase |
