There is no description at this point.
rule win_epsilon_red_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-01-25" version = "1" description = "Detects win.epsilon_red." 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.epsilon_red" malpedia_rule_date = "20230124" malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686" malpedia_version = "20230125" 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 = { 762c 488d59ff 4989c0 48b8cdcccccccccccccc 4989d1 48f7e6 48c1ea03 } // n = 7, score = 200 // 762c | dec eax // 488d59ff | add esp, 0x60 // 4989c0 | ret // 48b8cdcccccccccccccc | dec eax // 4989d1 | lea eax, [0xaa4b0] // 48f7e6 | dec eax // 48c1ea03 | mov dword ptr [esp], eax $sequence_1 = { 4983f902 770d ba06000000 4531c0 e9???????? 49c1ea02 4c8b642468 } // n = 7, score = 200 // 4983f902 | mov dword ptr [esp + 8], ecx // 770d | dec eax // ba06000000 | mov ecx, dword ptr [edx] // 4531c0 | dec eax // e9???????? | // 49c1ea02 | mov eax, dword ptr [edx + 8] // 4c8b642468 | jmp 0x1185 $sequence_2 = { 77eb 488b5230 488b9aa0000000 4885db 7566 0fb6c1 0f1f4000 } // n = 7, score = 200 // 77eb | dec eax // 488b5230 | mov dword ptr [esp + 0xc0], eax // 488b9aa0000000 | dec eax // 4885db | mov dword ptr [esp + 0xc8], edx // 7566 | mov byte ptr [esp + 0xd0], bl // 0fb6c1 | dec eax // 0f1f4000 | mov dword ptr [esp + 0xa8], ecx $sequence_3 = { 49d3e3 4921c3 4d39da 742a 488d0412 488d40ff 4c89c9 } // n = 7, score = 200 // 49d3e3 | mov dword ptr [esp + 0x18], eax // 4921c3 | nop // 4d39da | nop // 742a | dec eax // 488d0412 | lea ecx, [0x213a14] // 488d40ff | dec eax // 4c89c9 | mov dword ptr [esp], ecx $sequence_4 = { f20f10442430 f20f110424 e8???????? f20f10442408 488b442410 f20f100d???????? 660f2ec1 } // n = 7, score = 200 // f20f10442430 | lea eax, [0x139795] // f20f110424 | dec eax // e8???????? | // f20f10442408 | mov dword ptr [esp], eax // 488b442410 | dec eax // f20f100d???????? | // 660f2ec1 | mov dword ptr [esp + 8], 0x1c $sequence_5 = { 8844241e 48891c24 488b442430 4889442408 e8???????? 488b442420 c680b600000001 } // n = 7, score = 200 // 8844241e | dec eax // 48891c24 | sub esp, 0x58 // 488b442430 | dec eax // 4889442408 | mov dword ptr [esp + 0x50], ebp // e8???????? | // 488b442420 | dec eax // c680b600000001 | lea ebp, [esp + 0x50] $sequence_6 = { 90 ebbf 48894c2470 48890424 e8???????? 488b542408 488b4c2470 } // n = 7, score = 200 // 90 | dec eax // ebbf | mov dword ptr [esp + 0x10], esi // 48894c2470 | dec eax // 48890424 | mov eax, dword ptr [esp + 0x30] // e8???????? | // 488b542408 | dec eax // 488b4c2470 | mov ebx, dword ptr [esp + 0x1d8] $sequence_7 = { 65488b0c2528000000 488b8900000000 483b6110 0f8619010000 4883ec48 48896c2440 488d6c2440 } // n = 7, score = 200 // 65488b0c2528000000 | mov ecx, dword ptr [esp + 0x38] // 488b8900000000 | dec eax // 483b6110 | mov dword ptr [esp + 0x20], ecx // 0f8619010000 | dec eax // 4883ec48 | mov dword ptr [esp + 0x28], ecx // 48896c2440 | dec eax // 488d6c2440 | mov ecx, dword ptr [ecx + 0x18] $sequence_8 = { ebe6 0fbae008 73a8 ebaf 4889442418 e8???????? 488b0424 } // n = 7, score = 200 // ebe6 | dec eax // 0fbae008 | lea ecx, [esp + 0xa8] // 73a8 | dec eax // ebaf | mov dword ptr [esp + 0x18], ecx // 4889442418 | dec eax // e8???????? | // 488b0424 | mov dword ptr [esp + 0x20], 4 $sequence_9 = { 48c744242000000000 c744242800000000 488d4c2460 48894c2430 0f57c0 0f11442438 e8???????? } // n = 7, score = 200 // 48c744242000000000 | dec eax // c744242800000000 | mov ebx, dword ptr [esp + 0x108] // 488d4c2460 | dec eax // 48894c2430 | mov dword ptr [esp + 0x148], ebx // 0f57c0 | dec eax // 0f11442438 | mov ebx, dword ptr [esp + 0x50] // e8???????? | condition: 7 of them and filesize < 5075968 }
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