Actor(s): Samurai Panda, Stone Panda
There is no description at this point.
rule win_poldat_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.poldat" 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 = { c645c320 8845fc c645c42f c645c563 c645c620 c645c770 c645c869 } // n = 7, score = 100 // c645c320 | mov byte ptr [ebp - 0x3d], 0x20 // 8845fc | mov byte ptr [ebp - 4], al // c645c42f | mov byte ptr [ebp - 0x3c], 0x2f // c645c563 | mov byte ptr [ebp - 0x3b], 0x63 // c645c620 | mov byte ptr [ebp - 0x3a], 0x20 // c645c770 | mov byte ptr [ebp - 0x39], 0x70 // c645c869 | mov byte ptr [ebp - 0x38], 0x69 $sequence_1 = { 896e08 8a11 8b4808 c1e208 03ca 8bfb } // n = 6, score = 100 // 896e08 | mov dword ptr [esi + 8], ebp // 8a11 | mov dl, byte ptr [ecx] // 8b4808 | mov ecx, dword ptr [eax + 8] // c1e208 | shl edx, 8 // 03ca | add ecx, edx // 8bfb | mov edi, ebx $sequence_2 = { 52 c7431824d84100 ff5324 83c408 8bc6 5f 5e } // n = 7, score = 100 // 52 | push edx // c7431824d84100 | mov dword ptr [ebx + 0x18], 0x41d824 // ff5324 | call dword ptr [ebx + 0x24] // 83c408 | add esp, 8 // 8bc6 | mov eax, esi // 5f | pop edi // 5e | pop esi $sequence_3 = { 5e 5d 5b c3 55 8bec 81ec68040000 } // n = 7, score = 100 // 5e | pop esi // 5d | pop ebp // 5b | pop ebx // c3 | ret // 55 | push ebp // 8bec | mov ebp, esp // 81ec68040000 | sub esp, 0x468 $sequence_4 = { 730a 33db 8a9fd0984100 eb0d 8bcf } // n = 5, score = 100 // 730a | jae 0xc // 33db | xor ebx, ebx // 8a9fd0984100 | mov bl, byte ptr [edi + 0x4198d0] // eb0d | jmp 0xf // 8bcf | mov ecx, edi $sequence_5 = { 8b4c2414 42 49 894c2414 c70000000000 e9???????? 8b442424 } // n = 7, score = 100 // 8b4c2414 | mov ecx, dword ptr [esp + 0x14] // 42 | inc edx // 49 | dec ecx // 894c2414 | mov dword ptr [esp + 0x14], ecx // c70000000000 | mov dword ptr [eax], 0 // e9???????? | // 8b442424 | mov eax, dword ptr [esp + 0x24] $sequence_6 = { 0f84c4010000 6a04 8d45f8 68???????? } // n = 4, score = 100 // 0f84c4010000 | je 0x1ca // 6a04 | push 4 // 8d45f8 | lea eax, [ebp - 8] // 68???????? | $sequence_7 = { 894c2414 8b4c2428 8b0c8d68c34100 894c241c 8b4c242c 8b0c8d68c34100 } // n = 6, score = 100 // 894c2414 | mov dword ptr [esp + 0x14], ecx // 8b4c2428 | mov ecx, dword ptr [esp + 0x28] // 8b0c8d68c34100 | mov ecx, dword ptr [ecx*4 + 0x41c368] // 894c241c | mov dword ptr [esp + 0x1c], ecx // 8b4c242c | mov ecx, dword ptr [esp + 0x2c] // 8b0c8d68c34100 | mov ecx, dword ptr [ecx*4 + 0x41c368] $sequence_8 = { 85d2 7421 c7030d000000 8b461c 8b5c2418 bd???????? } // n = 6, score = 100 // 85d2 | test edx, edx // 7421 | je 0x23 // c7030d000000 | mov dword ptr [ebx], 0xd // 8b461c | mov eax, dword ptr [esi + 0x1c] // 8b5c2418 | mov ebx, dword ptr [esp + 0x18] // bd???????? | $sequence_9 = { 8d45f8 68???????? 50 e8???????? ff75f8 e8???????? } // n = 6, score = 100 // 8d45f8 | lea eax, [ebp - 8] // 68???????? | // 50 | push eax // e8???????? | // ff75f8 | push dword ptr [ebp - 8] // e8???????? | condition: 7 of them and filesize < 247808 }
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