mirror of
https://github.com/roadwy/DefenderYara
synced 2026-06-21 14:08:27 +00:00
roadwy
19 lines
1.2 KiB
Plaintext
19 lines
1.2 KiB
Plaintext
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rule HackTool_Linux_SuspUnixReShellCmd_D{
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meta:
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description = "HackTool:Linux/SuspUnixReShellCmd.D,SIGNATURE_TYPE_CMDHSTR_EXT,18 00 18 00 09 00 00 "
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strings :
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$a_02_0 = {70 00 79 00 74 00 68 00 6f 00 6e 00 [0-20] 2d 00 63 00 [0-20] 69 00 6d 00 70 00 6f 00 72 00 74 00 } //10
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$a_02_1 = {73 00 75 00 62 00 70 00 72 00 6f 00 63 00 65 00 73 00 73 00 2e 00 63 00 61 00 6c 00 6c 00 [0-02] 28 00 [0-02] 5b 00 [0-04] 2f 00 62 00 69 00 6e 00 2f 00 [0-04] 73 00 68 00 } //10
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$a_00_2 = {61 00 66 00 5f 00 69 00 6e 00 65 00 74 00 } //1 af_inet
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$a_00_3 = {73 00 6f 00 63 00 6b 00 5f 00 73 00 74 00 72 00 65 00 61 00 6d 00 } //1 sock_stream
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$a_02_4 = {63 00 6f 00 6e 00 6e 00 65 00 63 00 74 00 [0-01] 28 00 [0-01] 28 00 [0-50] 29 00 } //1
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$a_00_5 = {6f 00 73 00 2e 00 64 00 75 00 70 00 32 00 } //1 os.dup2
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$a_00_6 = {31 00 32 00 37 00 2e 00 30 00 2e 00 30 00 2e 00 31 00 } //-80 127.0.0.1
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$a_00_7 = {6c 00 6f 00 63 00 61 00 6c 00 68 00 6f 00 73 00 74 00 } //-80 localhost
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$a_00_8 = {30 00 2e 00 30 00 2e 00 30 00 2e 00 30 00 } //-80 0.0.0.0
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condition:
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((#a_02_0 & 1)*10+(#a_02_1 & 1)*10+(#a_00_2 & 1)*1+(#a_00_3 & 1)*1+(#a_02_4 & 1)*1+(#a_00_5 & 1)*1+(#a_00_6 & 1)*-80+(#a_00_7 & 1)*-80+(#a_00_8 & 1)*-80) >=24
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} |