There is no description at this point.
rule win_mikoponi_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-12-06" version = "1" description = "Detects win.mikoponi." 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.mikoponi" 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 = { 8b0f 51 e8???????? 83c404 5d 5f 83c408 } // n = 7, score = 100 // 8b0f | mov ecx, dword ptr [edi] // 51 | push ecx // e8???????? | // 83c404 | add esp, 4 // 5d | pop ebp // 5f | pop edi // 83c408 | add esp, 8 $sequence_1 = { e8???????? 83c404 eb15 8d942464020000 52 8d442418 } // n = 6, score = 100 // e8???????? | // 83c404 | add esp, 4 // eb15 | jmp 0x17 // 8d942464020000 | lea edx, [esp + 0x264] // 52 | push edx // 8d442418 | lea eax, [esp + 0x18] $sequence_2 = { 33ed 391d???????? 743d bf???????? } // n = 4, score = 100 // 33ed | xor ebp, ebp // 391d???????? | // 743d | je 0x3f // bf???????? | $sequence_3 = { b9???????? 66895010 c7004418a150 e8???????? 8d3c47 } // n = 5, score = 100 // b9???????? | // 66895010 | mov word ptr [eax + 0x10], dx // c7004418a150 | mov dword ptr [eax], 0x50a11844 // e8???????? | // 8d3c47 | lea edi, [edi + eax*2] $sequence_4 = { 53 55 e8???????? 83c40c 84c0 7506 83c3ff } // n = 7, score = 100 // 53 | push ebx // 55 | push ebp // e8???????? | // 83c40c | add esp, 0xc // 84c0 | test al, al // 7506 | jne 8 // 83c3ff | add ebx, -1 $sequence_5 = { 803d????????01 56 7527 8b742408 56 ff15???????? } // n = 6, score = 100 // 803d????????01 | // 56 | push esi // 7527 | jne 0x29 // 8b742408 | mov esi, dword ptr [esp + 8] // 56 | push esi // ff15???????? | $sequence_6 = { e8???????? 81c470040000 c3 8b542430 3b542420 750e } // n = 6, score = 100 // e8???????? | // 81c470040000 | add esp, 0x470 // c3 | ret // 8b542430 | mov edx, dword ptr [esp + 0x30] // 3b542420 | cmp edx, dword ptr [esp + 0x20] // 750e | jne 0x10 $sequence_7 = { 7543 3805???????? 753b 8d8c2464020000 51 68???????? } // n = 6, score = 100 // 7543 | jne 0x45 // 3805???????? | // 753b | jne 0x3d // 8d8c2464020000 | lea ecx, [esp + 0x264] // 51 | push ecx // 68???????? | condition: 7 of them and filesize < 330752 }
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