There is no description at this point.
rule win_goodor_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2020-10-14" version = "1" description = "autogenerated rule brought to you by yara-signator" tool = "yara-signator v0.5.0" signator_config = "callsandjumps;datarefs;binvalue" malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.goodor" malpedia_rule_date = "20201014" malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9" malpedia_version = "20201014" 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 = { e8???????? 0f0b 8b842458010000 890424 8d0d451b6000 894c2404 c74424080a000000 } // n = 7, score = 100 // e8???????? | // 0f0b | ud2 // 8b842458010000 | mov eax, dword ptr [esp + 0x158] // 890424 | mov dword ptr [esp], eax // 8d0d451b6000 | lea ecx, [0x601b45] // 894c2404 | mov dword ptr [esp + 4], ecx // c74424080a000000 | mov dword ptr [esp + 8], 0xa $sequence_1 = { 8d2de07d5c00 892c24 89442404 897c2408 894c240c 89742410 e8???????? } // n = 7, score = 100 // 8d2de07d5c00 | lea ebp, [0x5c7de0] // 892c24 | mov dword ptr [esp], ebp // 89442404 | mov dword ptr [esp + 4], eax // 897c2408 | mov dword ptr [esp + 8], edi // 894c240c | mov dword ptr [esp + 0xc], ecx // 89742410 | mov dword ptr [esp + 0x10], esi // e8???????? | $sequence_2 = { 8b6b24 896c2404 8d2d409a5c00 892c24 8d742440 89742408 e8???????? } // n = 7, score = 100 // 8b6b24 | mov ebp, dword ptr [ebx + 0x24] // 896c2404 | mov dword ptr [esp + 4], ebp // 8d2d409a5c00 | lea ebp, [0x5c9a40] // 892c24 | mov dword ptr [esp], ebp // 8d742440 | lea esi, [esp + 0x40] // 89742408 | mov dword ptr [esp + 8], esi // e8???????? | $sequence_3 = { f20f11440508 8d5301 89e8 89542418 8b5c2448 39da 0f8c5fffffff } // n = 7, score = 100 // f20f11440508 | movsd qword ptr [ebp + eax + 8], xmm0 // 8d5301 | lea edx, [ebx + 1] // 89e8 | mov eax, ebp // 89542418 | mov dword ptr [esp + 0x18], edx // 8b5c2448 | mov ebx, dword ptr [esp + 0x48] // 39da | cmp edx, ebx // 0f8c5fffffff | jl 0xffffff65 $sequence_4 = { ebdd 8d2de07d5c00 892c24 89442404 897c2408 894c240c 89742410 } // n = 7, score = 100 // ebdd | jmp 0xffffffdf // 8d2de07d5c00 | lea ebp, [0x5c7de0] // 892c24 | mov dword ptr [esp], ebp // 89442404 | mov dword ptr [esp + 4], eax // 897c2408 | mov dword ptr [esp + 8], edi // 894c240c | mov dword ptr [esp + 0xc], ecx // 89742410 | mov dword ptr [esp + 0x10], esi $sequence_5 = { c7042400000000 89442404 894c2408 8d053a026000 8944240c c744241002000000 e8???????? } // n = 7, score = 100 // c7042400000000 | mov dword ptr [esp], 0 // 89442404 | mov dword ptr [esp + 4], eax // 894c2408 | mov dword ptr [esp + 8], ecx // 8d053a026000 | lea eax, [0x60023a] // 8944240c | mov dword ptr [esp + 0xc], eax // c744241002000000 | mov dword ptr [esp + 0x10], 2 // e8???????? | $sequence_6 = { e9???????? 891424 894c2404 895c2408 e8???????? 8b54240c 8b4c2410 } // n = 7, score = 100 // e9???????? | // 891424 | mov dword ptr [esp], edx // 894c2404 | mov dword ptr [esp + 4], ecx // 895c2408 | mov dword ptr [esp + 8], ebx // e8???????? | // 8b54240c | mov edx, dword ptr [esp + 0xc] // 8b4c2410 | mov ecx, dword ptr [esp + 0x10] $sequence_7 = { 8d0598096000 890424 c744240405000000 8d055b396000 89442408 c744240c11000000 8d058a086000 } // n = 7, score = 100 // 8d0598096000 | lea eax, [0x600998] // 890424 | mov dword ptr [esp], eax // c744240405000000 | mov dword ptr [esp + 4], 5 // 8d055b396000 | lea eax, [0x60395b] // 89442408 | mov dword ptr [esp + 8], eax // c744240c11000000 | mov dword ptr [esp + 0xc], 0x11 // 8d058a086000 | lea eax, [0x60088a] $sequence_8 = { 8d15e07b5c00 891424 c744240400000000 89442408 e8???????? 8b442410 8b4c240c } // n = 7, score = 100 // 8d15e07b5c00 | lea edx, [0x5c7be0] // 891424 | mov dword ptr [esp], edx // c744240400000000 | mov dword ptr [esp + 4], 0 // 89442408 | mov dword ptr [esp + 8], eax // e8???????? | // 8b442410 | mov eax, dword ptr [esp + 0x10] // 8b4c240c | mov ecx, dword ptr [esp + 0xc] $sequence_9 = { 8d05354e6000 890424 c744240414000000 e8???????? 0f0b 8b15???????? 890a } // n = 7, score = 100 // 8d05354e6000 | lea eax, [0x604e35] // 890424 | mov dword ptr [esp], eax // c744240414000000 | mov dword ptr [esp + 4], 0x14 // e8???????? | // 0f0b | ud2 // 8b15???????? | // 890a | mov dword ptr [edx], ecx condition: 7 of them and filesize < 6545408 }
rule win_goodor_w0 { meta: author = "NCSC" hash = "b5278301da06450fe4442a25dda2d83d21485be63598642573f59c59e980ad46" malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.goodor" malpedia_version = "20180413" malpedia_license = "CC BY-NC-SA 4.0" malpedia_sharing = "TLP:WHITE" strings: $a1 = { 35 34 36 35 4B 4A 55 54 5E 49 55 5F 29 7B 68 36 35 67 34 36 64 66 35 68 } $a2 = { fb ff ff ff 00 00 } condition: all of them }
If your designated proposal does not fit in any other category, feel free to write a free-text in the comment field below. Changes regarding references should be proposed on the Malpedia library page.
Your suggestion will be reviewed before being published. Thank you for contributing!
YYYY-MM-DD
YYYY-MM
YYYY