19 lines
890 B
Text
19 lines
890 B
Text
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// Copyright 2021 by FireEye, Inc.
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// You may not use this file except in compliance with the license. The license should have been received with this file.
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rule FE_APT_Trojan_PL_RADIALPULSE_3
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{
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meta:
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author = "Mandiant"
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date_created = "2021-04-16"
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md5 = "4a2a7cbc1c8855199a27a7a7b51d0117"
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reference_url = "https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html"
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strings:
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$s1 = "open(*fd,"
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$s2 = "syswrite(*fd,"
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$s3 = "close(*fd);"
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$s4 = /open\(\*fd,[\x09\x20]{0,32}[\x22\x27]>>\/tmp\/dsstartssh\.statementcounters[\x22\x27]\);[\x09\x20]{0,32}syswrite\(\*fd,[\x09\x20]{0,32}/
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$s5 = /syswrite\(\*fd,[\x09\x20]{0,32}[\x22\x27][\w]{1,128}=\$username ?[\x22\x27],[\x09\x20]{0,32}\d{4}\)/
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condition:
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all of them
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}
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