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rule win_goggles_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-03-28" version = "1" description = "Detects win.goggles." 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.goggles" malpedia_rule_date = "20230328" malpedia_hash = "9d2d75cef573c1c2d861f5197df8f563b05a305d" malpedia_version = "20230407" 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 = { 53 ffd7 85c0 75c7 8b6c2418 56 } // n = 6, score = 100 // 53 | push ebx // ffd7 | call edi // 85c0 | test eax, eax // 75c7 | jne 0xffffffc9 // 8b6c2418 | mov ebp, dword ptr [esp + 0x18] // 56 | push esi $sequence_1 = { ff15???????? 8b442410 8d4c241c 8d542420 } // n = 4, score = 100 // ff15???????? | // 8b442410 | mov eax, dword ptr [esp + 0x10] // 8d4c241c | lea ecx, [esp + 0x1c] // 8d542420 | lea edx, [esp + 0x20] $sequence_2 = { 85c0 7430 68???????? ff15???????? 8d542408 52 } // n = 6, score = 100 // 85c0 | test eax, eax // 7430 | je 0x32 // 68???????? | // ff15???????? | // 8d542408 | lea edx, [esp + 8] // 52 | push edx $sequence_3 = { 81fd90010000 f3ab aa 53 7616 ff15???????? } // n = 6, score = 100 // 81fd90010000 | cmp ebp, 0x190 // f3ab | rep stosd dword ptr es:[edi], eax // aa | stosb byte ptr es:[edi], al // 53 | push ebx // 7616 | jbe 0x18 // ff15???????? | $sequence_4 = { 85c0 7443 8b2d???????? 8b442414 } // n = 4, score = 100 // 85c0 | test eax, eax // 7443 | je 0x45 // 8b2d???????? | // 8b442414 | mov eax, dword ptr [esp + 0x14] $sequence_5 = { ffd3 57 6a04 8d44245c 6a01 50 ff15???????? } // n = 7, score = 100 // ffd3 | call ebx // 57 | push edi // 6a04 | push 4 // 8d44245c | lea eax, [esp + 0x5c] // 6a01 | push 1 // 50 | push eax // ff15???????? | $sequence_6 = { 6a2f 56 ff15???????? 8bf8 83c9ff 47 } // n = 6, score = 100 // 6a2f | push 0x2f // 56 | push esi // ff15???????? | // 8bf8 | mov edi, eax // 83c9ff | or ecx, 0xffffffff // 47 | inc edi $sequence_7 = { c680a841001000 8d842410010000 6891010000 50 6a02 56 ffd5 } // n = 7, score = 100 // c680a841001000 | mov byte ptr [eax + 0x100041a8], 0 // 8d842410010000 | lea eax, [esp + 0x110] // 6891010000 | push 0x191 // 50 | push eax // 6a02 | push 2 // 56 | push esi // ffd5 | call ebp $sequence_8 = { 68???????? 51 68???????? e8???????? 83c410 c680a841001000 8d842410010000 } // n = 7, score = 100 // 68???????? | // 51 | push ecx // 68???????? | // e8???????? | // 83c410 | add esp, 0x10 // c680a841001000 | mov byte ptr [eax + 0x100041a8], 0 // 8d842410010000 | lea eax, [esp + 0x110] $sequence_9 = { ffd7 8d842484030000 682d010000 8d8c2484020000 50 51 e8???????? } // n = 7, score = 100 // ffd7 | call edi // 8d842484030000 | lea eax, [esp + 0x384] // 682d010000 | push 0x12d // 8d8c2484020000 | lea ecx, [esp + 0x284] // 50 | push eax // 51 | push ecx // e8???????? | condition: 7 of them and filesize < 57344 }
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