There is no description at this point.
rule win_taleret_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-07-11" version = "1" description = "Detects win.taleret." 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.taleret" malpedia_rule_date = "20230705" malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41" malpedia_version = "20230715" 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 = { 761b 8b542418 8d3c32 e8???????? 8a17 } // n = 5, score = 100 // 761b | jbe 0x1d // 8b542418 | mov edx, dword ptr [esp + 0x18] // 8d3c32 | lea edi, [edx + esi] // e8???????? | // 8a17 | mov dl, byte ptr [edi] $sequence_1 = { 85c0 7529 ff15???????? 83f87a 0f8519050000 8b542414 } // n = 6, score = 100 // 85c0 | test eax, eax // 7529 | jne 0x2b // ff15???????? | // 83f87a | cmp eax, 0x7a // 0f8519050000 | jne 0x51f // 8b542414 | mov edx, dword ptr [esp + 0x14] $sequence_2 = { 50 e8???????? 83c404 837b080f 7f23 } // n = 5, score = 100 // 50 | push eax // e8???????? | // 83c404 | add esp, 4 // 837b080f | cmp dword ptr [ebx + 8], 0xf // 7f23 | jg 0x25 $sequence_3 = { 0fbec9 7c0b 83f840 7d06 8a440444 } // n = 5, score = 100 // 0fbec9 | movsx ecx, cl // 7c0b | jl 0xd // 83f840 | cmp eax, 0x40 // 7d06 | jge 8 // 8a440444 | mov al, byte ptr [esp + eax + 0x44] $sequence_4 = { 83c404 8bf0 6a00 6a00 6a00 55 ff15???????? } // n = 7, score = 100 // 83c404 | add esp, 4 // 8bf0 | mov esi, eax // 6a00 | push 0 // 6a00 | push 0 // 6a00 | push 0 // 55 | push ebp // ff15???????? | $sequence_5 = { 8b4c2438 8b442434 3bc8 7513 83c1f8 } // n = 5, score = 100 // 8b4c2438 | mov ecx, dword ptr [esp + 0x38] // 8b442434 | mov eax, dword ptr [esp + 0x34] // 3bc8 | cmp ecx, eax // 7513 | jne 0x15 // 83c1f8 | add ecx, -8 $sequence_6 = { 0418 eb15 3c2e 7507 c644240852 eb0e } // n = 6, score = 100 // 0418 | add al, 0x18 // eb15 | jmp 0x17 // 3c2e | cmp al, 0x2e // 7507 | jne 9 // c644240852 | mov byte ptr [esp + 8], 0x52 // eb0e | jmp 0x10 $sequence_7 = { c684247016000001 e8???????? 8b9c247c160000 8b6c241c e9???????? 8b442424 8b4c2414 } // n = 7, score = 100 // c684247016000001 | mov byte ptr [esp + 0x1670], 1 // e8???????? | // 8b9c247c160000 | mov ebx, dword ptr [esp + 0x167c] // 8b6c241c | mov ebp, dword ptr [esp + 0x1c] // e9???????? | // 8b442424 | mov eax, dword ptr [esp + 0x24] // 8b4c2414 | mov ecx, dword ptr [esp + 0x14] $sequence_8 = { 68ff070000 8d4c2418 6a01 51 ffd3 8bf8 8a460c } // n = 7, score = 100 // 68ff070000 | push 0x7ff // 8d4c2418 | lea ecx, [esp + 0x18] // 6a01 | push 1 // 51 | push ecx // ffd3 | call ebx // 8bf8 | mov edi, eax // 8a460c | mov al, byte ptr [esi + 0xc] $sequence_9 = { 7439 8d4c242c 8d542418 51 52 ff15???????? } // n = 6, score = 100 // 7439 | je 0x3b // 8d4c242c | lea ecx, [esp + 0x2c] // 8d542418 | lea edx, [esp + 0x18] // 51 | push ecx // 52 | push edx // ff15???????? | condition: 7 of them and filesize < 73728 }
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