There is no description at this point.
rule win_magala_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-12-06" version = "1" description = "Detects win.magala." 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.magala" 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 = { 8b4004 838c054cffffff04 8b8538ffffff 8b4004 c6840578ffffff30 2b17 744e } // n = 7, score = 200 // 8b4004 | mov eax, dword ptr [eax + 4] // 838c054cffffff04 | or dword ptr [ebp + eax - 0xb4], 4 // 8b8538ffffff | mov eax, dword ptr [ebp - 0xc8] // 8b4004 | mov eax, dword ptr [eax + 4] // c6840578ffffff30 | mov byte ptr [ebp + eax - 0x88], 0x30 // 2b17 | sub edx, dword ptr [edi] // 744e | je 0x50 $sequence_1 = { 8b7dd0 3bdf 0f849d000000 33c0 c745e800000000 6aff 50 } // n = 7, score = 200 // 8b7dd0 | mov edi, dword ptr [ebp - 0x30] // 3bdf | cmp ebx, edi // 0f849d000000 | je 0xa3 // 33c0 | xor eax, eax // c745e800000000 | mov dword ptr [ebp - 0x18], 0 // 6aff | push -1 // 50 | push eax $sequence_2 = { 8bcf e8???????? 56 8bd0 c645fc0c 8d4da8 e8???????? } // n = 7, score = 200 // 8bcf | mov ecx, edi // e8???????? | // 56 | push esi // 8bd0 | mov edx, eax // c645fc0c | mov byte ptr [ebp - 4], 0xc // 8d4da8 | lea ecx, [ebp - 0x58] // e8???????? | $sequence_3 = { 8a55d8 c645fc00 83f810 7242 } // n = 4, score = 200 // 8a55d8 | mov dl, byte ptr [ebp - 0x28] // c645fc00 | mov byte ptr [ebp - 4], 0 // 83f810 | cmp eax, 0x10 // 7242 | jb 0x44 $sequence_4 = { e8???????? 8b4df8 83c40c 837e1410 894e10 7211 } // n = 6, score = 200 // e8???????? | // 8b4df8 | mov ecx, dword ptr [ebp - 8] // 83c40c | add esp, 0xc // 837e1410 | cmp dword ptr [esi + 0x14], 0x10 // 894e10 | mov dword ptr [esi + 0x10], ecx // 7211 | jb 0x13 $sequence_5 = { 6685c0 75f4 a1???????? 8b550c } // n = 4, score = 200 // 6685c0 | test ax, ax // 75f4 | jne 0xfffffff6 // a1???????? | // 8b550c | mov edx, dword ptr [ebp + 0xc] $sequence_6 = { 6a01 50 8b08 ff513c 85c0 75b8 50 } // n = 7, score = 200 // 6a01 | push 1 // 50 | push eax // 8b08 | mov ecx, dword ptr [eax] // ff513c | call dword ptr [ecx + 0x3c] // 85c0 | test eax, eax // 75b8 | jne 0xffffffba // 50 | push eax $sequence_7 = { 8995e0fdffff 8955fc 8b1d???????? 0f1f8000000000 } // n = 4, score = 200 // 8995e0fdffff | mov dword ptr [ebp - 0x220], edx // 8955fc | mov dword ptr [ebp - 4], edx // 8b1d???????? | // 0f1f8000000000 | nop dword ptr [eax] $sequence_8 = { c745e800000000 c745ec0f000000 c645d800 e8???????? c745fc00000000 8d4e04 } // n = 6, score = 200 // c745e800000000 | mov dword ptr [ebp - 0x18], 0 // c745ec0f000000 | mov dword ptr [ebp - 0x14], 0xf // c645d800 | mov byte ptr [ebp - 0x28], 0 // e8???????? | // c745fc00000000 | mov dword ptr [ebp - 4], 0 // 8d4e04 | lea ecx, [esi + 4] $sequence_9 = { e8???????? 8b4df8 b853d9de75 8b75f4 33db 2bce f7e9 } // n = 7, score = 200 // e8???????? | // 8b4df8 | mov ecx, dword ptr [ebp - 8] // b853d9de75 | mov eax, 0x75ded953 // 8b75f4 | mov esi, dword ptr [ebp - 0xc] // 33db | xor ebx, ebx // 2bce | sub ecx, esi // f7e9 | imul ecx condition: 7 of them and filesize < 589824 }
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