Actor(s): RANCOR
There is no description at this point.
rule win_ddkong_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-07-11" version = "1" description = "Detects win.ddkong." 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.ddkong" 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 = { 8b44241c 42 83c504 3bd0 72be 5f 5e } // n = 7, score = 100 // 8b44241c | mov eax, dword ptr [esp + 0x1c] // 42 | inc edx // 83c504 | add ebp, 4 // 3bd0 | cmp edx, eax // 72be | jb 0xffffffc0 // 5f | pop edi // 5e | pop esi $sequence_1 = { c6458769 c6458874 c6458979 c6458a44 c6458b65 c6458c73 } // n = 6, score = 100 // c6458769 | mov byte ptr [ebp - 0x79], 0x69 // c6458874 | mov byte ptr [ebp - 0x78], 0x74 // c6458979 | mov byte ptr [ebp - 0x77], 0x79 // c6458a44 | mov byte ptr [ebp - 0x76], 0x44 // c6458b65 | mov byte ptr [ebp - 0x75], 0x65 // c6458c73 | mov byte ptr [ebp - 0x74], 0x73 $sequence_2 = { 6804000098 895dcc ff7508 c745d4e8030000 } // n = 4, score = 100 // 6804000098 | push 0x98000004 // 895dcc | mov dword ptr [ebp - 0x34], ebx // ff7508 | push dword ptr [ebp + 8] // c745d4e8030000 | mov dword ptr [ebp - 0x2c], 0x3e8 $sequence_3 = { 3bc7 0f84b1000000 6a01 57 6a02 } // n = 5, score = 100 // 3bc7 | cmp eax, edi // 0f84b1000000 | je 0xb7 // 6a01 | push 1 // 57 | push edi // 6a02 | push 2 $sequence_4 = { ffb524ffffff ff9560ffffff 834dfcff e8???????? ff957cffffff 8b4df0 } // n = 6, score = 100 // ffb524ffffff | push dword ptr [ebp - 0xdc] // ff9560ffffff | call dword ptr [ebp - 0xa0] // 834dfcff | or dword ptr [ebp - 4], 0xffffffff // e8???????? | // ff957cffffff | call dword ptr [ebp - 0x84] // 8b4df0 | mov ecx, dword ptr [ebp - 0x10] $sequence_5 = { 7304 8bc3 eb66 8d45fc } // n = 4, score = 100 // 7304 | jae 6 // 8bc3 | mov eax, ebx // eb66 | jmp 0x68 // 8d45fc | lea eax, [ebp - 4] $sequence_6 = { 50 53 c645d447 c645d565 c645d674 c645d743 c645d875 } // n = 7, score = 100 // 50 | push eax // 53 | push ebx // c645d447 | mov byte ptr [ebp - 0x2c], 0x47 // c645d565 | mov byte ptr [ebp - 0x2b], 0x65 // c645d674 | mov byte ptr [ebp - 0x2a], 0x74 // c645d743 | mov byte ptr [ebp - 0x29], 0x43 // c645d875 | mov byte ptr [ebp - 0x28], 0x75 $sequence_7 = { c645c441 ffd7 50 ffd6 8065e800 8b3d???????? 8d45dc } // n = 7, score = 100 // c645c441 | mov byte ptr [ebp - 0x3c], 0x41 // ffd7 | call edi // 50 | push eax // ffd6 | call esi // 8065e800 | and byte ptr [ebp - 0x18], 0 // 8b3d???????? | // 8d45dc | lea eax, [ebp - 0x24] $sequence_8 = { ffb540ffffff ffb5b8feffff 56 56 56 ff7510 ff750c } // n = 7, score = 100 // ffb540ffffff | push dword ptr [ebp - 0xc0] // ffb5b8feffff | push dword ptr [ebp - 0x148] // 56 | push esi // 56 | push esi // 56 | push esi // ff7510 | push dword ptr [ebp + 0x10] // ff750c | push dword ptr [ebp + 0xc] $sequence_9 = { c645966e c6459774 c6459865 c6459972 8d458c } // n = 5, score = 100 // c645966e | mov byte ptr [ebp - 0x6a], 0x6e // c6459774 | mov byte ptr [ebp - 0x69], 0x74 // c6459865 | mov byte ptr [ebp - 0x68], 0x65 // c6459972 | mov byte ptr [ebp - 0x67], 0x72 // 8d458c | lea eax, [ebp - 0x74] condition: 7 of them and filesize < 81920 }
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