mirror of
https://github.com/roadwy/DefenderYara
synced 2026-06-21 14:08:27 +00:00
roadwy
20 lines
1.1 KiB
Plaintext
20 lines
1.1 KiB
Plaintext
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rule HackTool_Linux_SuspUnixReShellCmd_L{
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meta:
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description = "HackTool:Linux/SuspUnixReShellCmd.L,SIGNATURE_TYPE_CMDHSTR_EXT,07 00 07 00 0a 00 00 "
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strings :
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$a_00_0 = {6f 00 70 00 65 00 6e 00 73 00 73 00 6c 00 } //1 openssl
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$a_00_1 = {73 00 5f 00 63 00 6c 00 69 00 65 00 6e 00 74 00 } //1 s_client
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$a_00_2 = {2d 00 71 00 75 00 69 00 65 00 74 00 } //1 -quiet
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$a_00_3 = {2d 00 63 00 6f 00 6e 00 6e 00 65 00 63 00 74 00 } //1 -connect
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$a_00_4 = {64 00 6f 00 20 00 73 00 68 00 20 00 26 00 26 00 20 00 62 00 72 00 65 00 61 00 6b 00 3b 00 } //1 do sh && break;
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$a_00_5 = {64 00 6f 00 6e 00 65 00 20 00 32 00 3e 00 26 00 31 00 } //1 done 2>&1
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$a_00_6 = {73 00 68 00 20 00 2d 00 63 00 } //1 sh -c
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$a_00_7 = {31 00 32 00 37 00 2e 00 30 00 2e 00 30 00 2e 00 31 00 } //-50 127.0.0.1
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$a_00_8 = {6c 00 6f 00 63 00 61 00 6c 00 68 00 6f 00 73 00 74 00 } //-50 localhost
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$a_00_9 = {30 00 2e 00 30 00 2e 00 30 00 2e 00 30 00 } //-50 0.0.0.0
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condition:
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((#a_00_0 & 1)*1+(#a_00_1 & 1)*1+(#a_00_2 & 1)*1+(#a_00_3 & 1)*1+(#a_00_4 & 1)*1+(#a_00_5 & 1)*1+(#a_00_6 & 1)*1+(#a_00_7 & 1)*-50+(#a_00_8 & 1)*-50+(#a_00_9 & 1)*-50) >=7
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} |