There is no description at this point.
rule win_hi_zor_rat_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-07-11" version = "1" description = "Detects win.hi_zor_rat." 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.hi_zor_rat" 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 = { 8b5508 51 52 8bc7 e8???????? 5f } // n = 6, score = 200 // 8b5508 | mov edx, dword ptr [ebp + 8] // 51 | push ecx // 52 | push edx // 8bc7 | mov eax, edi // e8???????? | // 5f | pop edi $sequence_1 = { 53 895dec e8???????? 8b450c 83c40c 57 } // n = 6, score = 200 // 53 | push ebx // 895dec | mov dword ptr [ebp - 0x14], ebx // e8???????? | // 8b450c | mov eax, dword ptr [ebp + 0xc] // 83c40c | add esp, 0xc // 57 | push edi $sequence_2 = { 895dec 891e ff15???????? 85c0 } // n = 4, score = 200 // 895dec | mov dword ptr [ebp - 0x14], ebx // 891e | mov dword ptr [esi], ebx // ff15???????? | // 85c0 | test eax, eax $sequence_3 = { 89581c 23df 0bde 03585c 8975fc 8b7018 } // n = 6, score = 200 // 89581c | mov dword ptr [eax + 0x1c], ebx // 23df | and ebx, edi // 0bde | or ebx, esi // 03585c | add ebx, dword ptr [eax + 0x5c] // 8975fc | mov dword ptr [ebp - 4], esi // 8b7018 | mov esi, dword ptr [eax + 0x18] $sequence_4 = { 83feff 0f8475010000 b9???????? 8d85c0fbffff 90 668b10 663b11 } // n = 7, score = 200 // 83feff | cmp esi, -1 // 0f8475010000 | je 0x17b // b9???????? | // 8d85c0fbffff | lea eax, [ebp - 0x440] // 90 | nop // 668b10 | mov dx, word ptr [eax] // 663b11 | cmp dx, word ptr [ecx] $sequence_5 = { 6a00 ff15???????? 68c8000000 8d85c8feffff 6a00 50 e8???????? } // n = 7, score = 200 // 6a00 | push 0 // ff15???????? | // 68c8000000 | push 0xc8 // 8d85c8feffff | lea eax, [ebp - 0x138] // 6a00 | push 0 // 50 | push eax // e8???????? | $sequence_6 = { 23f7 8bdf 8b7814 f7d3 235814 0bde 035848 } // n = 7, score = 200 // 23f7 | and esi, edi // 8bdf | mov ebx, edi // 8b7814 | mov edi, dword ptr [eax + 0x14] // f7d3 | not ebx // 235814 | and ebx, dword ptr [eax + 0x14] // 0bde | or ebx, esi // 035848 | add ebx, dword ptr [eax + 0x48] $sequence_7 = { ff15???????? 83c404 8d85a0fbffff 50 } // n = 4, score = 200 // ff15???????? | // 83c404 | add esp, 4 // 8d85a0fbffff | lea eax, [ebp - 0x460] // 50 | push eax $sequence_8 = { 89853cffffff e8???????? 33c0 680e040000 50 8d8dcaf6ffff } // n = 6, score = 200 // 89853cffffff | mov dword ptr [ebp - 0xc4], eax // e8???????? | // 33c0 | xor eax, eax // 680e040000 | push 0x40e // 50 | push eax // 8d8dcaf6ffff | lea ecx, [ebp - 0x936] $sequence_9 = { c78564ffffff25003900 c78568ffffff30002200 c7856cffffff0a000100 c78570ffffff3f003800 c78574ffffff32003900 c78578ffffff21002500 } // n = 6, score = 200 // c78564ffffff25003900 | mov dword ptr [ebp - 0x9c], 0x390025 // c78568ffffff30002200 | mov dword ptr [ebp - 0x98], 0x220030 // c7856cffffff0a000100 | mov dword ptr [ebp - 0x94], 0x1000a // c78570ffffff3f003800 | mov dword ptr [ebp - 0x90], 0x38003f // c78574ffffff32003900 | mov dword ptr [ebp - 0x8c], 0x390032 // c78578ffffff21002500 | mov dword ptr [ebp - 0x88], 0x250021 condition: 7 of them and filesize < 73728 }
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