There is no description at this point.
rule win_glitch_pos_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-12-06" version = "1" description = "Detects win.glitch_pos." 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.glitch_pos" 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 = { 83a5d8feffff00 8b45b8 898518ffffff 8d45d0 50 8b8518ffffff } // n = 6, score = 100 // 83a5d8feffff00 | and dword ptr [ebp - 0x128], 0 // 8b45b8 | mov eax, dword ptr [ebp - 0x48] // 898518ffffff | mov dword ptr [ebp - 0xe8], eax // 8d45d0 | lea eax, [ebp - 0x30] // 50 | push eax // 8b8518ffffff | mov eax, dword ptr [ebp - 0xe8] $sequence_1 = { 8b4508 8b00 ff7508 ff9028070000 668b45d4 662d0100 } // n = 6, score = 100 // 8b4508 | mov eax, dword ptr [ebp + 8] // 8b00 | mov eax, dword ptr [eax] // ff7508 | push dword ptr [ebp + 8] // ff9028070000 | call dword ptr [eax + 0x728] // 668b45d4 | mov ax, word ptr [ebp - 0x2c] // 662d0100 | sub ax, 1 $sequence_2 = { ffb504ffffff e8???????? 89855cfeffff eb07 83a55cfeffff00 8d8d5cffffff e8???????? } // n = 7, score = 100 // ffb504ffffff | push dword ptr [ebp - 0xfc] // e8???????? | // 89855cfeffff | mov dword ptr [ebp - 0x1a4], eax // eb07 | jmp 9 // 83a55cfeffff00 | and dword ptr [ebp - 0x1a4], 0 // 8d8d5cffffff | lea ecx, [ebp - 0xa4] // e8???????? | $sequence_3 = { e8???????? 8d8520ffffff 50 8d8530ffffff 50 8d45dc 50 } // n = 7, score = 100 // e8???????? | // 8d8520ffffff | lea eax, [ebp - 0xe0] // 50 | push eax // 8d8530ffffff | lea eax, [ebp - 0xd0] // 50 | push eax // 8d45dc | lea eax, [ebp - 0x24] // 50 | push eax $sequence_4 = { 68???????? 68???????? e8???????? c78568feffff2cc34600 eb0a c78568feffff2cc34600 8b8568feffff } // n = 7, score = 100 // 68???????? | // 68???????? | // e8???????? | // c78568feffff2cc34600 | mov dword ptr [ebp - 0x198], 0x46c32c // eb0a | jmp 0xc // c78568feffff2cc34600 | mov dword ptr [ebp - 0x198], 0x46c32c // 8b8568feffff | mov eax, dword ptr [ebp - 0x198] $sequence_5 = { eb07 83a5fcfdffff00 8d45c4 50 8d45cc 50 6a02 } // n = 7, score = 100 // eb07 | jmp 9 // 83a5fcfdffff00 | and dword ptr [ebp - 0x204], 0 // 8d45c4 | lea eax, [ebp - 0x3c] // 50 | push eax // 8d45cc | lea eax, [ebp - 0x34] // 50 | push eax // 6a02 | push 2 $sequence_6 = { 8b4d10 660301 0f8058040000 668945ec 8b4508 8b00 } // n = 6, score = 100 // 8b4d10 | mov ecx, dword ptr [ebp + 0x10] // 660301 | add ax, word ptr [ecx] // 0f8058040000 | jo 0x45e // 668945ec | mov word ptr [ebp - 0x14], ax // 8b4508 | mov eax, dword ptr [ebp + 8] // 8b00 | mov eax, dword ptr [eax] $sequence_7 = { 83c40c 68???????? 6a00 6a06 8b4508 } // n = 5, score = 100 // 83c40c | add esp, 0xc // 68???????? | // 6a00 | push 0 // 6a06 | push 6 // 8b4508 | mov eax, dword ptr [ebp + 8] $sequence_8 = { 8d45b4 50 8d45b8 50 6a03 e8???????? } // n = 6, score = 100 // 8d45b4 | lea eax, [ebp - 0x4c] // 50 | push eax // 8d45b8 | lea eax, [ebp - 0x48] // 50 | push eax // 6a03 | push 3 // e8???????? | $sequence_9 = { 8bec 83ec0c 68???????? 64a100000000 50 64892500000000 b8bc000000 } // n = 7, score = 100 // 8bec | mov ebp, esp // 83ec0c | sub esp, 0xc // 68???????? | // 64a100000000 | mov eax, dword ptr fs:[0] // 50 | push eax // 64892500000000 | mov dword ptr fs:[0], esp // b8bc000000 | mov eax, 0xbc condition: 7 of them and filesize < 1024000 }
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