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https://github.com/roadwy/DefenderYara
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roadwy
13 lines
563 B
Plaintext
13 lines
563 B
Plaintext
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rule HackTool_Linux_DisableTTY_A{
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meta:
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description = "HackTool:Linux/DisableTTY.A,SIGNATURE_TYPE_CMDHSTR_EXT,03 00 03 00 03 00 00 "
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strings :
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$a_00_0 = {65 00 63 00 68 00 6f 00 20 00 } //1 echo
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$a_01_1 = {44 00 65 00 66 00 61 00 75 00 6c 00 74 00 73 00 20 00 21 00 74 00 74 00 79 00 5f 00 74 00 69 00 63 00 6b 00 65 00 74 00 73 00 } //1 Defaults !tty_tickets
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$a_00_2 = {2f 00 65 00 74 00 63 00 2f 00 73 00 75 00 64 00 6f 00 65 00 72 00 73 00 } //1 /etc/sudoers
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condition:
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((#a_00_0 & 1)*1+(#a_01_1 & 1)*1+(#a_00_2 & 1)*1) >=3
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} |