#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED SHELLCODE Shikata Ga Nai polymorphic payload"; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; reference:url,doc.emergingthreats.net/2003118; classtype:shellcode-detect; sid:2003118; rev:4; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2017-08-07 20:56:28 UTC


##alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED SHELLCODE Shikata Ga Nai polymorphic payload"; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; reference:url,doc.emergingthreats.net/2003118; classtype:shellcode-detect; sid:2003118; rev:4;)

Added 2012-09-05 00:42:36 UTC


#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET VIRUS SHELLCODE Shikata Ga Nai polymorphic payload"; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; reference:url,doc.emergingthreats.net/2003118; classtype:shellcode-detect; sid:2003118; rev:3;)

Added 2011-10-12 19:12:53 UTC


#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET VIRUS SHELLCODE Shikata Ga Nai polymorphic payload"; classtype:shellcode-detect; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; reference:url,doc.emergingthreats.net/2003118; sid:2003118; rev:3;)

Added 2011-09-14 22:25:50 UTC


#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET VIRUS SHELLCODE Shikata Ga Nai polymorphic payload"; classtype:shellcode-detect; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; reference:url,doc.emergingthreats.net/2003118; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/VIRUS_Polymorphic_Experimental; sid:2003118; rev:3;)

Added 2011-02-04 17:22:15 UTC


#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET VIRUS SHELLCODE Shikata Ga Nai polymorphic payload"; classtype:shellcode-detect; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; reference:url,doc.emergingthreats.net/2003118; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/VIRUS_Polymorphic_Experimental; sid:2003118; rev:3;)

Added 2009-02-13 19:47:25 UTC


#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET VIRUS SHELLCODE Shikata Ga Nai polymorphic payload"; classtype:shellcode-detect; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; reference:url,doc.emergingthreats.net/2003118; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/VIRUS_Polymorphic_Experimental; sid:2003118; rev:3;)

Added 2009-02-13 19:47:25 UTC


#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET VIRUS SHELLCODE Shikata Ga Nai polymorphic payload"; classtype:shellcode-detect; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; reference:url,doc.emergingthreats.net/2003118; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/VIRUS_Polymorphic_Experimental; sid:2003118; rev:3;)

Added 2009-02-13 19:46:38 UTC


#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET VIRUS SHELLCODE Shikata Ga Nai polymorphic payload"; classtype:shellcode-detect; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; reference:url,doc.emergingthreats.net/2003118; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/VIRUS_Polymorphic_Experimental; sid:2003118; rev:3;)

Added 2009-02-13 19:46:38 UTC


#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET VIRUS SHELLCODE Shikata Ga Nai polymorphic payload"; classtype:shellcode-detect; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; sid:2003118; rev:2;)

Added 2008-01-31 10:12:22 UTC


#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET VIRUS SHELLCODE Shikata Ga Nai polymorphic payload"; classtype:shellcode-detect; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; sid:2003118; rev:2;)

Added 2008-01-31 10:12:22 UTC


#alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"BLEEDING-EDGE VIRUS SHELLCODE Shikata Ga Nai polymorphic payload"; classtype:shellcode-detect; dsize: >26; content: "|d9 74 24 f4|"; pcre: "/[\x29\x2b\x31\x33]\xc9/sm"; pcre: "/[\xd9-\xdb\xdd].{1,11}\xd9\x74\x24\xf4.{0,10}[\x58\x5a\x5b\x5d-\x5f]/sm"; pcre: "/([\x29\x2b\x31\x33\xb8\xba\xbb\xbe\xbf\xd9-\xdb\xdd][^\x00\xff][^\x00\xff][^\x00][^\x00\xff][^\x00][^\x00\xff][^\x00\xff][^\x00][^\x00][^\x00][^\x00\xff][^\x00\xff][^\x00\xff][^\x00][^\x00][\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0e\x10\x12\x13\x15\x17\xfc][\x03\x31\x83][\x42\x43\x46\x47\x50\x53\x56-\x58\x5a\x5e\x5f\x70\x72\x73\x77\x78\x7a\x7b\x7e\xc0\xc2\xc3\xc6\xc7\xe8\xea\xeb\xee\xef][\x04\x0a\x0c\x0e-\x13\x15\x17\xfc][\x03\x83]..[^\x1d\xe2][^\x0a\xf5])|([\x29\x2b\x31\x33\xb8\xba\xbb\xbd-\xbf\xd9-\xdb\xdd][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][^\x00][\x24\xb1\xd9-\xdb\xdd][^\x00][\x58\x5a\x5b\x5d-\x5f\xb8\xba\xbb\xbd-\xbf\xd9][^\x00][^\x00][^\x00][^\x00][\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0e\x12\x17\xfc][\x03\x31\x83][\x42\x43\x45-\x47\x50\x53\x55-\x58\x5a\x5d-\x5f\x68\x6a\x6b\x6e-\x70\x72\x73\x75\x77\x78\x7a\x7b\x7d\x7e\xc0\xc2\xc3\xc5-\xc7\xe8\xea\xeb\xed-\xef][\x04\x0a\x0e\x12\x13\x17\xfc][\x03\x83]..[^\xe2][^\xf5])/sm"; reference:url,toorcon.org/2006/conference.html?id=29; sid:2003118; rev:1;)



Topic revision: r1 - 2017-08-08 - TWikiGuest
 
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