There is no description at this point.
rule win_http_troy_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-12-06" version = "1" description = "Detects win.http_troy." 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.http_troy" 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 = { dd45f8 dae9 59 59 dfe0 f6c444 7a05 } // n = 7, score = 200 // dd45f8 | fld qword ptr [ebp - 8] // dae9 | fucompp // 59 | pop ecx // 59 | pop ecx // dfe0 | fnstsw ax // f6c444 | test ah, 0x44 // 7a05 | jp 7 $sequence_1 = { c3 8b8384400000 85c0 0f84bd010000 8b54240c 52 8b542414 } // n = 7, score = 200 // c3 | ret // 8b8384400000 | mov eax, dword ptr [ebx + 0x4084] // 85c0 | test eax, eax // 0f84bd010000 | je 0x1c3 // 8b54240c | mov edx, dword ptr [esp + 0xc] // 52 | push edx // 8b542414 | mov edx, dword ptr [esp + 0x14] $sequence_2 = { ff00 85d2 744e 8d45ec 50 53 8bcf } // n = 7, score = 200 // ff00 | inc dword ptr [eax] // 85d2 | test edx, edx // 744e | je 0x50 // 8d45ec | lea eax, [ebp - 0x14] // 50 | push eax // 53 | push ebx // 8bcf | mov ecx, edi $sequence_3 = { 8b4c2420 b801000000 89410c 8b4c2418 5f 5e e8???????? } // n = 7, score = 200 // 8b4c2420 | mov ecx, dword ptr [esp + 0x20] // b801000000 | mov eax, 1 // 89410c | mov dword ptr [ecx + 0xc], eax // 8b4c2418 | mov ecx, dword ptr [esp + 0x18] // 5f | pop edi // 5e | pop esi // e8???????? | $sequence_4 = { 56 57 e8???????? 59 59 eb7d dd4508 } // n = 7, score = 200 // 56 | push esi // 57 | push edi // e8???????? | // 59 | pop ecx // 59 | pop ecx // eb7d | jmp 0x7f // dd4508 | fld qword ptr [ebp + 8] $sequence_5 = { 83c604 3b742408 72ef 5e c3 56 8bf0 } // n = 7, score = 200 // 83c604 | add esi, 4 // 3b742408 | cmp esi, dword ptr [esp + 8] // 72ef | jb 0xfffffff1 // 5e | pop esi // c3 | ret // 56 | push esi // 8bf0 | mov esi, eax $sequence_6 = { 6a01 68???????? ffd3 85c0 0f857afeffff 393cb5c8540310 742e } // n = 7, score = 200 // 6a01 | push 1 // 68???????? | // ffd3 | call ebx // 85c0 | test eax, eax // 0f857afeffff | jne 0xfffffe80 // 393cb5c8540310 | cmp dword ptr [esi*4 + 0x100354c8], edi // 742e | je 0x30 $sequence_7 = { 50 8d4c240c 51 6a00 683f000f00 6a00 } // n = 6, score = 200 // 50 | push eax // 8d4c240c | lea ecx, [esp + 0xc] // 51 | push ecx // 6a00 | push 0 // 683f000f00 | push 0xf003f // 6a00 | push 0 $sequence_8 = { e8???????? 8b0d???????? 83c408 3bc1 741f 83c702 } // n = 6, score = 200 // e8???????? | // 8b0d???????? | // 83c408 | add esp, 8 // 3bc1 | cmp eax, ecx // 741f | je 0x21 // 83c702 | add edi, 2 $sequence_9 = { e8???????? 83c41c 8d942418010000 52 ffd3 85c0 7430 } // n = 7, score = 200 // e8???????? | // 83c41c | add esp, 0x1c // 8d942418010000 | lea edx, [esp + 0x118] // 52 | push edx // ffd3 | call ebx // 85c0 | test eax, eax // 7430 | je 0x32 condition: 7 of them and filesize < 475136 }
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