There is no description at this point.
rule win_kins_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2020-12-22" version = "1" description = "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.kins" malpedia_rule_date = "20201222" malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130" malpedia_version = "20201023" 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 = { 33d8 035de8 8955fc 8d9c3322619d6d c1c310 03da 315dfc } // n = 7, score = 5000 // 33d8 | xor ebx, eax // 035de8 | add ebx, dword ptr [ebp - 0x18] // 8955fc | mov dword ptr [ebp - 4], edx // 8d9c3322619d6d | lea ebx, [ebx + esi + 0x6d9d6122] // c1c310 | rol ebx, 0x10 // 03da | add ebx, edx // 315dfc | xor dword ptr [ebp - 4], ebx $sequence_1 = { e9???????? 8bc3 99 83e207 03c2 c1f803 8d440006 } // n = 7, score = 5000 // e9???????? | // 8bc3 | mov eax, ebx // 99 | cdq // 83e207 | and edx, 7 // 03c2 | add eax, edx // c1f803 | sar eax, 3 // 8d440006 | lea eax, [eax + eax + 6] $sequence_2 = { 0f95c0 c1e903 8d4408fd 50 8945f4 e8???????? 89450c } // n = 7, score = 5000 // 0f95c0 | setne al // c1e903 | shr ecx, 3 // 8d4408fd | lea eax, [eax + ecx - 3] // 50 | push eax // 8945f4 | mov dword ptr [ebp - 0xc], eax // e8???????? | // 89450c | mov dword ptr [ebp + 0xc], eax $sequence_3 = { 2bc8 03f9 8bc7 c1e002 50 e8???????? 33c9 } // n = 7, score = 5000 // 2bc8 | sub ecx, eax // 03f9 | add edi, ecx // 8bc7 | mov eax, edi // c1e002 | shl eax, 2 // 50 | push eax // e8???????? | // 33c9 | xor ecx, ecx $sequence_4 = { 834db620 830d????????10 8d4588 50 e8???????? eb3f a808 } // n = 7, score = 5000 // 834db620 | or dword ptr [ebp - 0x4a], 0x20 // 830d????????10 | // 8d4588 | lea eax, [ebp - 0x78] // 50 | push eax // e8???????? | // eb3f | jmp 0x41 // a808 | test al, 8 $sequence_5 = { 50 33c0 50 51 e8???????? 03f0 1155e4 } // n = 7, score = 5000 // 50 | push eax // 33c0 | xor eax, eax // 50 | push eax // 51 | push ecx // e8???????? | // 03f0 | add esi, eax // 1155e4 | adc dword ptr [ebp - 0x1c], edx $sequence_6 = { 83f8ff 741f 8bc6 50 8d5ddc e8???????? 8bf0 } // n = 7, score = 5000 // 83f8ff | cmp eax, -1 // 741f | je 0x21 // 8bc6 | mov eax, esi // 50 | push eax // 8d5ddc | lea ebx, [ebp - 0x24] // e8???????? | // 8bf0 | mov esi, eax $sequence_7 = { 03c6 89411c 83f818 7396 8a45ed e8???????? 8bf0 } // n = 7, score = 5000 // 03c6 | add eax, esi // 89411c | mov dword ptr [ecx + 0x1c], eax // 83f818 | cmp eax, 0x18 // 7396 | jae 0xffffff98 // 8a45ed | mov al, byte ptr [ebp - 0x13] // e8???????? | // 8bf0 | mov esi, eax $sequence_8 = { 8d7dfc 8bd6 e8???????? 85c0 75b4 8b45f4 8b4d10 } // n = 7, score = 5000 // 8d7dfc | lea edi, [ebp - 4] // 8bd6 | mov edx, esi // e8???????? | // 85c0 | test eax, eax // 75b4 | jne 0xffffffb6 // 8b45f4 | mov eax, dword ptr [ebp - 0xc] // 8b4d10 | mov ecx, dword ptr [ebp + 0x10] $sequence_9 = { 760e 8b4d14 8d420c 8918 83c020 } // n = 5, score = 5000 // 760e | jbe 0x10 // 8b4d14 | mov ecx, dword ptr [ebp + 0x14] // 8d420c | lea eax, [edx + 0xc] // 8918 | mov dword ptr [eax], ebx // 83c020 | add eax, 0x20 condition: 7 of them and filesize < 548864 }
If your designated proposal does not fit in any other category, feel free to write a free-text in the comment field below.
Please propose all changes regarding references on the Malpedia library page
Your suggestion will be reviewed before being published. Thank you for contributing!
YYYY-MM-DD
YYYY-MM
YYYY