Actor(s): APT 30
There is no description at this point.
rule win_neteagle_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2022-04-08" version = "1" description = "Detects win.neteagle." 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.neteagle" malpedia_rule_date = "20220405" malpedia_hash = "ecd38294bd47d5589be5cd5490dc8bb4804afc2a" malpedia_version = "20220411" 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 = { 8d4ddc e8???????? 8b4d0c 8b55b3 8b7508 8d45dc 8911 } // n = 7, score = 100 // 8d4ddc | lea ecx, dword ptr [ebp - 0x24] // e8???????? | // 8b4d0c | mov ecx, dword ptr [ebp + 0xc] // 8b55b3 | mov edx, dword ptr [ebp - 0x4d] // 8b7508 | mov esi, dword ptr [ebp + 8] // 8d45dc | lea eax, dword ptr [ebp - 0x24] // 8911 | mov dword ptr [ecx], edx $sequence_1 = { 89742414 eb04 8b742414 8d4c2410 e8???????? 8b4e10 } // n = 6, score = 100 // 89742414 | mov dword ptr [esp + 0x14], esi // eb04 | jmp 6 // 8b742414 | mov esi, dword ptr [esp + 0x14] // 8d4c2410 | lea ecx, dword ptr [esp + 0x10] // e8???????? | // 8b4e10 | mov ecx, dword ptr [esi + 0x10] $sequence_2 = { 03ce 03c8 88542901 8b5324 8b4c2410 03d6 } // n = 6, score = 100 // 03ce | add ecx, esi // 03c8 | add ecx, eax // 88542901 | mov byte ptr [ecx + ebp + 1], dl // 8b5324 | mov edx, dword ptr [ebx + 0x24] // 8b4c2410 | mov ecx, dword ptr [esp + 0x10] // 03d6 | add edx, esi $sequence_3 = { 85c0 751b 8b7508 68???????? 8bce } // n = 5, score = 100 // 85c0 | test eax, eax // 751b | jne 0x1d // 8b7508 | mov esi, dword ptr [ebp + 8] // 68???????? | // 8bce | mov ecx, esi $sequence_4 = { 57 8b4610 50 e8???????? 8bf8 85ff 746c } // n = 7, score = 100 // 57 | push edi // 8b4610 | mov eax, dword ptr [esi + 0x10] // 50 | push eax // e8???????? | // 8bf8 | mov edi, eax // 85ff | test edi, edi // 746c | je 0x6e $sequence_5 = { c645fc03 e8???????? c645fc01 e8???????? 51 } // n = 5, score = 100 // c645fc03 | mov byte ptr [ebp - 4], 3 // e8???????? | // c645fc01 | mov byte ptr [ebp - 4], 1 // e8???????? | // 51 | push ecx $sequence_6 = { f3a5 8bc8 83e103 f3a4 8bbd3cfbffff 83c9ff } // n = 6, score = 100 // f3a5 | rep movsd dword ptr es:[edi], dword ptr [esi] // 8bc8 | mov ecx, eax // 83e103 | and ecx, 3 // f3a4 | rep movsb byte ptr es:[edi], byte ptr [esi] // 8bbd3cfbffff | mov edi, dword ptr [ebp - 0x4c4] // 83c9ff | or ecx, 0xffffffff $sequence_7 = { 85db 0f844c010000 8d4c2410 e8???????? 8b4524 83c6f8 56 } // n = 7, score = 100 // 85db | test ebx, ebx // 0f844c010000 | je 0x152 // 8d4c2410 | lea ecx, dword ptr [esp + 0x10] // e8???????? | // 8b4524 | mov eax, dword ptr [ebp + 0x24] // 83c6f8 | add esi, -8 // 56 | push esi $sequence_8 = { 8d4c2418 885c240c e8???????? 8d4c241c c744240cffffffff e8???????? } // n = 6, score = 100 // 8d4c2418 | lea ecx, dword ptr [esp + 0x18] // 885c240c | mov byte ptr [esp + 0xc], bl // e8???????? | // 8d4c241c | lea ecx, dword ptr [esp + 0x1c] // c744240cffffffff | mov dword ptr [esp + 0xc], 0xffffffff // e8???????? | $sequence_9 = { 8d6c241c 8b7500 8bc2 8a18 8acb 3a1e } // n = 6, score = 100 // 8d6c241c | lea ebp, dword ptr [esp + 0x1c] // 8b7500 | mov esi, dword ptr [ebp] // 8bc2 | mov eax, edx // 8a18 | mov bl, byte ptr [eax] // 8acb | mov cl, bl // 3a1e | cmp bl, byte ptr [esi] condition: 7 of them and filesize < 262144 }
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