There is no description at this point.
rule win_atmii_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-12-06" version = "1" description = "Detects win.atmii." 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.atmii" 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 = { 6a03 68000000c0 8b0d???????? 51 ff15???????? 8945fc } // n = 6, score = 100 // 6a03 | push 3 // 68000000c0 | push 0xc0000000 // 8b0d???????? | // 51 | push ecx // ff15???????? | // 8945fc | mov dword ptr [ebp - 4], eax $sequence_1 = { 8945ee 0fb705???????? 52 682e010000 50 895dd9 } // n = 6, score = 100 // 8945ee | mov dword ptr [ebp - 0x12], eax // 0fb705???????? | // 52 | push edx // 682e010000 | push 0x12e // 50 | push eax // 895dd9 | mov dword ptr [ebp - 0x27], ebx $sequence_2 = { 68???????? 50 ffd7 8d9dfcfbffff } // n = 4, score = 100 // 68???????? | // 50 | push eax // ffd7 | call edi // 8d9dfcfbffff | lea ebx, [ebp - 0x404] $sequence_3 = { 8d8dd1f9ffff 51 8895c4f9ffff ff15???????? } // n = 4, score = 100 // 8d8dd1f9ffff | lea ecx, [ebp - 0x62f] // 51 | push ecx // 8895c4f9ffff | mov byte ptr [ebp - 0x63c], dl // ff15???????? | $sequence_4 = { 8d95fcfdffff 6a00 52 e8???????? 8b35???????? 83c424 68???????? } // n = 7, score = 100 // 8d95fcfdffff | lea edx, [ebp - 0x204] // 6a00 | push 0 // 52 | push edx // e8???????? | // 8b35???????? | // 83c424 | add esp, 0x24 // 68???????? | $sequence_5 = { 8945fc 837dfc00 7454 8b4dfc 0fb611 } // n = 5, score = 100 // 8945fc | mov dword ptr [ebp - 4], eax // 837dfc00 | cmp dword ptr [ebp - 4], 0 // 7454 | je 0x56 // 8b4dfc | mov ecx, dword ptr [ebp - 4] // 0fb611 | movzx edx, byte ptr [ecx] $sequence_6 = { 51 e8???????? 8b55f4 83c414 6a00 } // n = 5, score = 100 // 51 | push ecx // e8???????? | // 8b55f4 | mov edx, dword ptr [ebp - 0xc] // 83c414 | add esp, 0x14 // 6a00 | push 0 $sequence_7 = { 83c414 8d9df8fcffff e8???????? 8b45f8 85c0 7407 } // n = 6, score = 100 // 83c414 | add esp, 0x14 // 8d9df8fcffff | lea ebx, [ebp - 0x308] // e8???????? | // 8b45f8 | mov eax, dword ptr [ebp - 8] // 85c0 | test eax, eax // 7407 | je 9 $sequence_8 = { 68???????? 68c3000000 8d85f8fcffff 68???????? 50 } // n = 5, score = 100 // 68???????? | // 68c3000000 | push 0xc3 // 8d85f8fcffff | lea eax, [ebp - 0x308] // 68???????? | // 50 | push eax $sequence_9 = { 5f 5b 8be5 5d c3 68???????? 680b010000 } // n = 7, score = 100 // 5f | pop edi // 5b | pop ebx // 8be5 | mov esp, ebp // 5d | pop ebp // c3 | ret // 68???????? | // 680b010000 | push 0x10b $sequence_10 = { 837d0803 0f8ceb000000 53 8b1d???????? 57 68???????? } // n = 6, score = 100 // 837d0803 | cmp dword ptr [ebp + 8], 3 // 0f8ceb000000 | jl 0xf1 // 53 | push ebx // 8b1d???????? | // 57 | push edi // 68???????? | $sequence_11 = { ffd3 68???????? 68???????? 8985c5f9ffff ffd7 } // n = 5, score = 100 // ffd3 | call ebx // 68???????? | // 68???????? | // 8985c5f9ffff | mov dword ptr [ebp - 0x63b], eax // ffd7 | call edi $sequence_12 = { c745f800000000 ff15???????? 85c0 0f94c0 8845ff 84c0 742e } // n = 7, score = 100 // c745f800000000 | mov dword ptr [ebp - 8], 0 // ff15???????? | // 85c0 | test eax, eax // 0f94c0 | sete al // 8845ff | mov byte ptr [ebp - 1], al // 84c0 | test al, al // 742e | je 0x30 $sequence_13 = { 85ff 0f8448030000 8d55f0 52 6800040000 } // n = 5, score = 100 // 85ff | test edi, edi // 0f8448030000 | je 0x34e // 8d55f0 | lea edx, [ebp - 0x10] // 52 | push edx // 6800040000 | push 0x400 $sequence_14 = { ff2485181d0010 68???????? 8d8df8feffff 51 eb2f 68???????? } // n = 6, score = 100 // ff2485181d0010 | jmp dword ptr [eax*4 + 0x10001d18] // 68???????? | // 8d8df8feffff | lea ecx, [ebp - 0x108] // 51 | push ecx // eb2f | jmp 0x31 // 68???????? | $sequence_15 = { 81ea???????? 83c204 f7d2 8955ed } // n = 4, score = 100 // 81ea???????? | // 83c204 | add edx, 4 // f7d2 | not edx // 8955ed | mov dword ptr [ebp - 0x13], edx 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