Actor(s): Unit 8200
There is no description at this point.
rule win_duqu_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-12-06" version = "1" description = "Detects win.duqu." info = "autogenerated rule brought to you by yara-signator" tool = "yara-signator v0.6.0" signator_config = "callsandjumps;datarefs;binvalue" malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.duqu" malpedia_rule_date = "20231130" malpedia_hash = "fc8a0e9f343f6d6ded9e7df1a64dac0cc68d7351" malpedia_version = "20230808" malpedia_license = "CC BY-SA 4.0" malpedia_sharing = "TLP:WHITE" /* DISCLAIMER * The strings used in this rule have been automatically selected from the * disassembly of memory dumps and unpacked files, using YARA-Signator. * The code and documentation is published here: * https://github.com/fxb-cocacoding/yara-signator * As Malpedia is used as data source, please note that for a given * number of families, only single samples are documented. * This likely impacts the degree of generalization these rules will offer. * Take the described generation method also into consideration when you * apply the rules in your use cases and assign them confidence levels. */ strings: $sequence_0 = { 8bcb e8???????? bacdc185ad 89464c } // n = 4, score = 400 // 8bcb | mov ecx, ebx // e8???????? | // bacdc185ad | mov edx, 0xad85c1cd // 89464c | mov dword ptr [esi + 0x4c], eax $sequence_1 = { 85f6 7eb3 b8c64ff867 8bde 8bd7 89442420 } // n = 6, score = 400 // 85f6 | test esi, esi // 7eb3 | jle 0xffffffb5 // b8c64ff867 | mov eax, 0x67f84fc6 // 8bde | mov ebx, esi // 8bd7 | mov edx, edi // 89442420 | mov dword ptr [esp + 0x20], eax $sequence_2 = { 8b5c2414 85db 0f8402ffffff 46 } // n = 4, score = 400 // 8b5c2414 | mov ebx, dword ptr [esp + 0x14] // 85db | test ebx, ebx // 0f8402ffffff | je 0xffffff08 // 46 | inc esi $sequence_3 = { 85c0 0f848b020000 ba10ee27d3 8bcf e8???????? 894624 85c0 } // n = 7, score = 400 // 85c0 | test eax, eax // 0f848b020000 | je 0x291 // ba10ee27d3 | mov edx, 0xd327ee10 // 8bcf | mov ecx, edi // e8???????? | // 894624 | mov dword ptr [esi + 0x24], eax // 85c0 | test eax, eax $sequence_4 = { 0f84f7000000 0fb706 b9ab4f5ecd 33c1 } // n = 4, score = 400 // 0f84f7000000 | je 0xfd // 0fb706 | movzx eax, word ptr [esi] // b9ab4f5ecd | mov ecx, 0xcd5e4fab // 33c1 | xor eax, ecx $sequence_5 = { 56 51 8bf2 e8???????? } // n = 4, score = 400 // 56 | push esi // 51 | push ecx // 8bf2 | mov esi, edx // e8???????? | $sequence_6 = { 83c120 0fb7c9 8bc1 0fafc9 83e007 } // n = 5, score = 400 // 83c120 | add ecx, 0x20 // 0fb7c9 | movzx ecx, cx // 8bc1 | mov eax, ecx // 0fafc9 | imul ecx, ecx // 83e007 | and eax, 7 $sequence_7 = { 85c0 7465 e8???????? 85c0 } // n = 4, score = 400 // 85c0 | test eax, eax // 7465 | je 0x67 // e8???????? | // 85c0 | test eax, eax $sequence_8 = { 55 8bec 81ec08020000 56 8bf2 8d95f8fdffff } // n = 6, score = 400 // 55 | push ebp // 8bec | mov ebp, esp // 81ec08020000 | sub esp, 0x208 // 56 | push esi // 8bf2 | mov esi, edx // 8d95f8fdffff | lea edx, [ebp - 0x208] $sequence_9 = { 8bcb e8???????? bafa67937e 894648 8bcf } // n = 5, score = 400 // 8bcb | mov ecx, ebx // e8???????? | // bafa67937e | mov edx, 0x7e9367fa // 894648 | mov dword ptr [esi + 0x48], eax // 8bcf | mov ecx, edi $sequence_10 = { 8bf2 57 8d8e14020000 e8???????? } // n = 4, score = 200 // 8bf2 | mov esi, edx // 57 | push edi // 8d8e14020000 | lea ecx, [esi + 0x214] // e8???????? | $sequence_11 = { 8bf2 57 8d4e4c e8???????? } // n = 4, score = 200 // 8bf2 | mov esi, edx // 57 | push edi // 8d4e4c | lea ecx, [esi + 0x4c] // e8???????? | $sequence_12 = { 8bf2 8bf9 ff15???????? 56 } // n = 4, score = 200 // 8bf2 | mov esi, edx // 8bf9 | mov edi, ecx // ff15???????? | // 56 | push esi $sequence_13 = { 8bf2 57 8d8ecc000000 e8???????? } // n = 4, score = 200 // 8bf2 | mov esi, edx // 57 | push edi // 8d8ecc000000 | lea ecx, [esi + 0xcc] // e8???????? | $sequence_14 = { 8bf2 57 8d8e0c020000 e8???????? } // n = 4, score = 200 // 8bf2 | mov esi, edx // 57 | push edi // 8d8e0c020000 | lea ecx, [esi + 0x20c] // e8???????? | $sequence_15 = { 8bf2 57 8bf9 85f6 7425 66833e00 } // n = 6, score = 200 // 8bf2 | mov esi, edx // 57 | push edi // 8bf9 | mov edi, ecx // 85f6 | test esi, esi // 7425 | je 0x27 // 66833e00 | cmp word ptr [esi], 0 condition: 7 of them and filesize < 18759680 }
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