mirror of
https://github.com/roadwy/DefenderYara
synced 2026-06-21 14:08:27 +00:00
roadwy
21 lines
1.2 KiB
Plaintext
21 lines
1.2 KiB
Plaintext
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rule HackTool_Linux_SuspUnixReShellCmd_J{
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meta:
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description = "HackTool:Linux/SuspUnixReShellCmd.J,SIGNATURE_TYPE_CMDHSTR_EXT,17 00 17 00 0b 00 00 "
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strings :
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$a_00_0 = {54 00 43 00 50 00 53 00 6f 00 63 00 6b 00 65 00 74 00 2e 00 6e 00 65 00 77 00 28 00 } //5 TCPSocket.new(
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$a_00_1 = {49 00 4f 00 2e 00 70 00 6f 00 70 00 65 00 6e 00 28 00 } //5 IO.popen(
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$a_02_2 = {69 00 6f 00 [0-02] 7c 00 } //5
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$a_02_3 = {70 00 72 00 69 00 6e 00 74 00 [0-02] 69 00 6f 00 2e 00 72 00 65 00 61 00 64 00 [0-02] 7d 00 [0-02] 65 00 6e 00 64 00 } //5
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$a_00_4 = {72 00 75 00 62 00 79 00 } //1 ruby
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$a_00_5 = {2d 00 72 00 73 00 6f 00 63 00 6b 00 65 00 74 00 } //1 -rsocket
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$a_00_6 = {2d 00 65 00 } //1 -e
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$a_00_7 = {2d 00 72 00 6f 00 70 00 65 00 6e 00 73 00 73 00 6c 00 } //1 -ropenssl
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$a_00_8 = {31 00 32 00 37 00 2e 00 30 00 2e 00 30 00 2e 00 31 00 } //-50 127.0.0.1
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$a_00_9 = {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_10 = {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)*5+(#a_00_1 & 1)*5+(#a_02_2 & 1)*5+(#a_02_3 & 1)*5+(#a_00_4 & 1)*1+(#a_00_5 & 1)*1+(#a_00_6 & 1)*1+(#a_00_7 & 1)*1+(#a_00_8 & 1)*-50+(#a_00_9 & 1)*-50+(#a_00_10 & 1)*-50) >=23
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} |