Actor(s): Aurora Panda, Hurricane Panda
There is no description at this point.
rule win_hikit_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-03-28" version = "1" description = "Detects win.hikit." 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.hikit" malpedia_rule_date = "20230328" malpedia_hash = "9d2d75cef573c1c2d861f5197df8f563b05a305d" malpedia_version = "20230407" 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 = { 83f802 7517 56 68???????? 8d442428 68ff030000 } // n = 6, score = 100 // 83f802 | cmp eax, 2 // 7517 | jne 0x19 // 56 | push esi // 68???????? | // 8d442428 | lea eax, [esp + 0x28] // 68ff030000 | push 0x3ff $sequence_1 = { 89442430 48 8b4c2430 0fb6842498000000 88410d 48 8b4c2458 } // n = 7, score = 100 // 89442430 | mov dword ptr [esp + 0x30], eax // 48 | dec eax // 8b4c2430 | mov ecx, dword ptr [esp + 0x30] // 0fb6842498000000 | movzx eax, byte ptr [esp + 0x98] // 88410d | mov byte ptr [ecx + 0xd], al // 48 | dec eax // 8b4c2458 | mov ecx, dword ptr [esp + 0x58] $sequence_2 = { 8b45fc 897014 8b45fc 897068 8b45fc 89b064080000 8b45fc } // n = 7, score = 100 // 8b45fc | mov eax, dword ptr [ebp - 4] // 897014 | mov dword ptr [eax + 0x14], esi // 8b45fc | mov eax, dword ptr [ebp - 4] // 897068 | mov dword ptr [eax + 0x68], esi // 8b45fc | mov eax, dword ptr [ebp - 4] // 89b064080000 | mov dword ptr [eax + 0x864], esi // 8b45fc | mov eax, dword ptr [ebp - 4] $sequence_3 = { be18000000 c744240c00000000 8d5c2424 8b4704 8b4f0c 68d0070000 56 } // n = 7, score = 100 // be18000000 | mov esi, 0x18 // c744240c00000000 | mov dword ptr [esp + 0xc], 0 // 8d5c2424 | lea ebx, [esp + 0x24] // 8b4704 | mov eax, dword ptr [edi + 4] // 8b4f0c | mov ecx, dword ptr [edi + 0xc] // 68d0070000 | push 0x7d0 // 56 | push esi $sequence_4 = { 8b442420 2bc1 89442454 8b442454 89442428 8b442428 48 } // n = 7, score = 100 // 8b442420 | mov eax, dword ptr [esp + 0x20] // 2bc1 | sub eax, ecx // 89442454 | mov dword ptr [esp + 0x54], eax // 8b442454 | mov eax, dword ptr [esp + 0x54] // 89442428 | mov dword ptr [esp + 0x28], eax // 8b442428 | mov eax, dword ptr [esp + 0x28] // 48 | dec eax $sequence_5 = { 23cb c1e102 51 50 56 e8???????? 8b45fc } // n = 7, score = 100 // 23cb | and ecx, ebx // c1e102 | shl ecx, 2 // 51 | push ecx // 50 | push eax // 56 | push esi // e8???????? | // 8b45fc | mov eax, dword ptr [ebp - 4] $sequence_6 = { 48 837c242000 740d 48 8b442420 48 c7404800000000 } // n = 7, score = 100 // 48 | dec eax // 837c242000 | cmp dword ptr [esp + 0x20], 0 // 740d | je 0xf // 48 | dec eax // 8b442420 | mov eax, dword ptr [esp + 0x20] // 48 | dec eax // c7404800000000 | mov dword ptr [eax + 0x48], 0 $sequence_7 = { 89b050080000 8b45fc 897074 668b470e 8ae8 6a08 8acc } // n = 7, score = 100 // 89b050080000 | mov dword ptr [eax + 0x850], esi // 8b45fc | mov eax, dword ptr [ebp - 4] // 897074 | mov dword ptr [eax + 0x74], esi // 668b470e | mov ax, word ptr [edi + 0xe] // 8ae8 | mov ch, al // 6a08 | push 8 // 8acc | mov cl, ah $sequence_8 = { 8d348540540210 8b06 83e71f c1e706 03c7 8a5824 02db } // n = 7, score = 100 // 8d348540540210 | lea esi, [eax*4 + 0x10025440] // 8b06 | mov eax, dword ptr [esi] // 83e71f | and edi, 0x1f // c1e706 | shl edi, 6 // 03c7 | add eax, edi // 8a5824 | mov bl, byte ptr [eax + 0x24] // 02db | add bl, bl $sequence_9 = { 8b4038 48 898424a8000000 48 83bc24a800000000 742c 48 } // n = 7, score = 100 // 8b4038 | mov eax, dword ptr [eax + 0x38] // 48 | dec eax // 898424a8000000 | mov dword ptr [esp + 0xa8], eax // 48 | dec eax // 83bc24a800000000 | cmp dword ptr [esp + 0xa8], 0 // 742c | je 0x2e // 48 | dec eax condition: 7 of them and filesize < 573440 }
rule win_hikit_w0 { meta: author = "31ric" description = "Backdoor.Hikit is a Trojan horse that opens a back door on the compromised computer." source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/hiddenlynxfiles.yar" malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.hikit" malpedia_version = "20170517" malpedia_license = "CC BY-NC-SA 4.0" malpedia_sharing = "TLP:WHITE" strings: $f1 = "w7fw.sys" nocase ascii wide $f2 = "w7fw_m.inf" nocase ascii wide $f3 = "w7fw.inf" nocase ascii wide $f4 = "w7fw.cat" nocase ascii wide condition: 1 of them }
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