There is no description at this point.
rule win_getmypass_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-12-06" version = "1" description = "Detects win.getmypass." 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.getmypass" 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 = { 83c201 8955fc ebcb 837dfc05 7e04 b001 eb02 } // n = 7, score = 200 // 83c201 | add edx, 1 // 8955fc | mov dword ptr [ebp - 4], edx // ebcb | jmp 0xffffffcd // 837dfc05 | cmp dword ptr [ebp - 4], 5 // 7e04 | jle 6 // b001 | mov al, 1 // eb02 | jmp 4 $sequence_1 = { 0fb64d08 85c9 7418 8b9594fdffff 52 } // n = 5, score = 200 // 0fb64d08 | movzx ecx, byte ptr [ebp + 8] // 85c9 | test ecx, ecx // 7418 | je 0x1a // 8b9594fdffff | mov edx, dword ptr [ebp - 0x26c] // 52 | push edx $sequence_2 = { 68???????? 68???????? e8???????? 83c408 8945fc 837dfc00 7463 } // n = 7, score = 200 // 68???????? | // 68???????? | // e8???????? | // 83c408 | add esp, 8 // 8945fc | mov dword ptr [ebp - 4], eax // 837dfc00 | cmp dword ptr [ebp - 4], 0 // 7463 | je 0x65 $sequence_3 = { 6a00 8b45f8 50 ff15???????? e8???????? } // n = 5, score = 200 // 6a00 | push 0 // 8b45f8 | mov eax, dword ptr [ebp - 8] // 50 | push eax // ff15???????? | // e8???????? | $sequence_4 = { 8945f4 837df400 742d 8b55f4 0fb702 83f831 750c } // n = 7, score = 200 // 8945f4 | mov dword ptr [ebp - 0xc], eax // 837df400 | cmp dword ptr [ebp - 0xc], 0 // 742d | je 0x2f // 8b55f4 | mov edx, dword ptr [ebp - 0xc] // 0fb702 | movzx eax, word ptr [edx] // 83f831 | cmp eax, 0x31 // 750c | jne 0xe $sequence_5 = { e8???????? 83c404 a3???????? 8b55f8 52 e8???????? 83c404 } // n = 7, score = 200 // e8???????? | // 83c404 | add esp, 4 // a3???????? | // 8b55f8 | mov edx, dword ptr [ebp - 8] // 52 | push edx // e8???????? | // 83c404 | add esp, 4 $sequence_6 = { 83f835 7409 0fbe4d08 83f934 } // n = 4, score = 200 // 83f835 | cmp eax, 0x35 // 7409 | je 0xb // 0fbe4d08 | movsx ecx, byte ptr [ebp + 8] // 83f934 | cmp ecx, 0x34 $sequence_7 = { e8???????? 83c404 8945fc 837dfcff 740e } // n = 5, score = 200 // e8???????? | // 83c404 | add esp, 4 // 8945fc | mov dword ptr [ebp - 4], eax // 837dfcff | cmp dword ptr [ebp - 4], -1 // 740e | je 0x10 $sequence_8 = { 8b55f8 8b4204 2b450c 8b4df8 0301 50 } // n = 6, score = 200 // 8b55f8 | mov edx, dword ptr [ebp - 8] // 8b4204 | mov eax, dword ptr [edx + 4] // 2b450c | sub eax, dword ptr [ebp + 0xc] // 8b4df8 | mov ecx, dword ptr [ebp - 8] // 0301 | add eax, dword ptr [ecx] // 50 | push eax $sequence_9 = { 83f801 7509 c745e400000000 eb17 8b5508 83c201 } // n = 6, score = 200 // 83f801 | cmp eax, 1 // 7509 | jne 0xb // c745e400000000 | mov dword ptr [ebp - 0x1c], 0 // eb17 | jmp 0x19 // 8b5508 | mov edx, dword ptr [ebp + 8] // 83c201 | add edx, 1 condition: 7 of them and filesize < 49152 }
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