rule shell_names { meta: author = "@patrickrolsen" version = "0.3" data = "08/19/2014" reference = "N/A" strings: $s1 = "faim.php" $s2 = "css5.php" $s3 = "groanea.php" $s4 = "siler.php" $s5 = "w.php" fullword $s6 = "atom-conf.php" $s7 = "405.php" $s8 = "pack2.php" $s9 = "r57shell.php" $s10 = "shell.php" fullword $s11 = "dra.php" $s12 = "lol.php" $s13 = "php-backdoor.php" $s14 = "aspxspy.aspx" $s15 = "c99.php" $s16 = "c99shell.php" $s17 = "fx29sh.php" $s18 = "azrailphp.php" $s19 = "CmdAsp.asp" $s20 = "dingen.php" $s21 = "entrika.php" condition: not uint16(0) == 0x5A4D and any of ($s*) }