Actor(s): APT 29
There is no description at this point.
rule win_powerduke_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-12-06" version = "1" description = "Detects win.powerduke." 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.powerduke" 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 = { c705????????00000000 6a04 6800300000 ff7518 } // n = 4, score = 500 // c705????????00000000 | // 6a04 | push 4 // 6800300000 | push 0x3000 // ff7518 | push dword ptr [ebp + 0x18] $sequence_1 = { ff75e4 ff75bc ff15???????? 09c0 7473 } // n = 5, score = 500 // ff75e4 | push dword ptr [ebp - 0x1c] // ff75bc | push dword ptr [ebp - 0x44] // ff15???????? | // 09c0 | or eax, eax // 7473 | je 0x75 $sequence_2 = { 6a00 ff15???????? 09c0 0f8412010000 8945e4 53 50 } // n = 7, score = 500 // 6a00 | push 0 // ff15???????? | // 09c0 | or eax, eax // 0f8412010000 | je 0x118 // 8945e4 | mov dword ptr [ebp - 0x1c], eax // 53 | push ebx // 50 | push eax $sequence_3 = { b801000000 c9 c20c00 55 89e5 81ec080c0000 } // n = 6, score = 500 // b801000000 | mov eax, 1 // c9 | leave // c20c00 | ret 0xc // 55 | push ebp // 89e5 | mov ebp, esp // 81ec080c0000 | sub esp, 0xc08 $sequence_4 = { 89f7 31c9 803c0f3a 7409 } // n = 4, score = 500 // 89f7 | mov edi, esi // 31c9 | xor ecx, ecx // 803c0f3a | cmp byte ptr [edi + ecx], 0x3a // 7409 | je 0xb $sequence_5 = { 09c0 7505 b850000000 8945ec c6040e00 } // n = 5, score = 500 // 09c0 | or eax, eax // 7505 | jne 7 // b850000000 | mov eax, 0x50 // 8945ec | mov dword ptr [ebp - 0x14], eax // c6040e00 | mov byte ptr [esi + ecx], 0 $sequence_6 = { c70000000000 837d2000 740f 8b4520 } // n = 4, score = 500 // c70000000000 | mov dword ptr [eax], 0 // 837d2000 | cmp dword ptr [ebp + 0x20], 0 // 740f | je 0x11 // 8b4520 | mov eax, dword ptr [ebp + 0x20] $sequence_7 = { c20400 55 89e5 56 57 8b750c } // n = 6, score = 500 // c20400 | ret 4 // 55 | push ebp // 89e5 | mov ebp, esp // 56 | push esi // 57 | push edi // 8b750c | mov esi, dword ptr [ebp + 0xc] $sequence_8 = { 0f8493000000 c745f901000000 89c3 be???????? } // n = 4, score = 500 // 0f8493000000 | je 0x99 // c745f901000000 | mov dword ptr [ebp - 7], 1 // 89c3 | mov ebx, eax // be???????? | $sequence_9 = { 6a00 57 ff15???????? 09c0 } // n = 4, score = 500 // 6a00 | push 0 // 57 | push edi // ff15???????? | // 09c0 | or eax, eax condition: 7 of them and filesize < 57344 }
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