Actor(s): Lazarus Group
There is no description at this point.
rule win_slickshoes_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2026-01-05" version = "1" description = "Detects win.slickshoes." 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.slickshoes" malpedia_rule_date = "20260105" malpedia_hash = "19b79e7cab4eaf532122e5b45a77dd8f6bb5cc79" malpedia_version = "20251219" 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 = { ff3424 5b 81c404000000 31ca 59 e9???????? 5e } // n = 7, score = 100 // ff3424 | push dword ptr [esp] // 5b | pop ebx // 81c404000000 | add esp, 4 // 31ca | xor edx, ecx // 59 | pop ecx // e9???????? | // 5e | pop esi $sequence_1 = { ff742404 5b 8f0424 e9???????? 871424 8b2424 e9???????? } // n = 7, score = 100 // ff742404 | push dword ptr [esp + 4] // 5b | pop ebx // 8f0424 | pop dword ptr [esp] // e9???????? | // 871424 | xchg dword ptr [esp], edx // 8b2424 | mov esp, dword ptr [esp] // e9???????? | $sequence_2 = { e9???????? 890424 e9???????? 8b1c24 81c404000000 01d6 e9???????? } // n = 7, score = 100 // e9???????? | // 890424 | mov dword ptr [esp], eax // e9???????? | // 8b1c24 | mov ebx, dword ptr [esp] // 81c404000000 | add esp, 4 // 01d6 | add esi, edx // e9???????? | $sequence_3 = { e9???????? 5c 81c5aae2bb7f 8b1424 56 e9???????? 58 } // n = 7, score = 100 // e9???????? | // 5c | pop esp // 81c5aae2bb7f | add ebp, 0x7fbbe2aa // 8b1424 | mov edx, dword ptr [esp] // 56 | push esi // e9???????? | // 58 | pop eax $sequence_4 = { fc 5d e5b4 d070d3 ac 4d f3b694 } // n = 7, score = 100 // fc | cld // 5d | pop ebp // e5b4 | in eax, 0xb4 // d070d3 | sal byte ptr [eax - 0x2d], 1 // ac | lodsb al, byte ptr [esi] // 4d | dec ebp // f3b694 | mov dh, 0x94 $sequence_5 = { 8a12 be00020000 81c61f000000 0017 81ee40000000 89ef b90a000000 } // n = 7, score = 100 // 8a12 | mov dl, byte ptr [edx] // be00020000 | mov esi, 0x200 // 81c61f000000 | add esi, 0x1f // 0017 | add byte ptr [edi], dl // 81ee40000000 | sub esi, 0x40 // 89ef | mov edi, ebp // b90a000000 | mov ecx, 0xa $sequence_6 = { ff3424 ff3424 e9???????? 55 bda9d61ffa 29e8 5d } // n = 7, score = 100 // ff3424 | push dword ptr [esp] // ff3424 | push dword ptr [esp] // e9???????? | // 55 | push ebp // bda9d61ffa | mov ebp, 0xfa1fd6a9 // 29e8 | sub eax, ebp // 5d | pop ebp $sequence_7 = { ff3424 5b 51 890424 89e0 83ec04 893c24 } // n = 7, score = 100 // ff3424 | push dword ptr [esp] // 5b | pop ebx // 51 | push ecx // 890424 | mov dword ptr [esp], eax // 89e0 | mov eax, esp // 83ec04 | sub esp, 4 // 893c24 | mov dword ptr [esp], edi $sequence_8 = { e9???????? 52 ba3c0d7e47 e9???????? 59 83ec04 891424 } // n = 7, score = 100 // e9???????? | // 52 | push edx // ba3c0d7e47 | mov edx, 0x477e0d3c // e9???????? | // 59 | pop ecx // 83ec04 | sub esp, 4 // 891424 | mov dword ptr [esp], edx $sequence_9 = { e9???????? 5d 83c104 870c24 8b2424 e9???????? 81ec04000000 } // n = 7, score = 100 // e9???????? | // 5d | pop ebp // 83c104 | add ecx, 4 // 870c24 | xchg dword ptr [esp], ecx // 8b2424 | mov esp, dword ptr [esp] // e9???????? | // 81ec04000000 | sub esp, 4 condition: 7 of them and filesize < 11198464 }
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