Sneed-Reactivity/yara-Neo23x0/apt_stuxshop.yar

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rule STUXSHOP_config {
meta:
desc = "Stuxshop standalone sample configuration"
author = "JAG-S (turla@chronicle.security)"
hash = "c1961e54d60e34bbec397c9120564e8d08f2f243ae349d2fb20f736510716579"
reference = "https://medium.com/chronicle-blog/who-is-gossipgirl-3b4170f846c0"
id = "67367db5-51b3-5177-960a-5b06161154e2"
strings:
$cnc1 = "http://211.24.237.226/index.php?data=" ascii wide
$cnc2 = "http://todaysfutbol.com/index.php?data=" ascii wide
$cnc3 = "http://78.111.169.146/index.php?data=" ascii wide
$cnc4 = "http://mypremierfutbol.com/index.php?data=" ascii wide
$regkey1 = "Software\\Microsoft\\Windows\\CurrentVersion\\MS-DOS Emulation" ascii wide
$regkey2 = "NTVDMParams" ascii wide
$flowerOverlap1 = { 85 C0 75 3B 57 FF 75 1C FF 75 18 FF 75 14 50 FF 75 10 FF 75 FC FF 15 }
$flowerOverlap2 = { 85 C0 75 4C 8B 45 1C 89 45 0C 8D 45 0C 50 8D 45 08 FF 75 18 50 6A 00 FF 75 10 FF 75 20 FF 15 }
$flowerOverlap3 = { 55 8B EC 53 56 8B 75 20 85 F6 74 03 83 26 00 8D 45 20 50 68 19 00 02 00 6A 00 FF 75 0C FF 75 08 }
$flowerOverlap4 = { 55 8B EC 51 8D 4D FC 33 C0 51 50 6A 26 50 89 45 FC FF 15 }
$flowerOverlap5 = { 85 DB 74 04 8B C3 EB 1A 8B 45 08 3B 45 14 74 07 B8 5D 06 00 00 EB 0B 85 F6 74 05 8B 45 0C 89 06 }
$flowerOverlap6 = { 85 FF 74 12 83 7D F8 01 75 0C FF 75 0C FF 75 08 FF 15 }
condition:
all of ($flowerOverlap*)
or
2 of ($cnc*)
or
all of ($regkey*)
}
rule STUXSHOP_OSCheck {
meta:
author = "Silas Cutler (havex@Chronicle.Security)"
desc = "Identifies the OS Check function in STUXSHOP and CheshireCat"
hash = "c1961e54d60e34bbec397c9120564e8d08f2f243ae349d2fb20f736510716579"
id = "24fb5c6f-d5ab-5f17-942c-b712e2c017d4"
strings:
$ = {10 F7 D8 1B C0 83 C0 ?? E9 ?? 01 00 00 39 85 7C FF FF FF 0F 85 ?? 01 00
00 83 BD 70 FF FF FF 04 8B 8D 74 FF FF FF 75 0B 85 C9 0F 85 ?? 01 00 00 6A 05
5E }
$ = {01 00 00 3B FA 0F 84 ?? 01 00 00 80 7D 80 00 B1 62 74 1D 6A 0D 8D 45 80
68 ?? ?? ?? 10 50 FF 15 ?? ?? ?? 10 83 C4 0C B1 6F 85 C0 75 03 8A 4D 8D 8B C6
}
condition:
any of them
}