Actor(s): Rocket Kitten
There is no description at this point.
rule win_woolger_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-01-25" version = "1" description = "Detects win.woolger." 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.woolger" 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 = { 7465 57 6a02 6a00 56 e8???????? } // n = 6, score = 200 // 7465 | je 0x67 // 57 | push edi // 6a02 | push 2 // 6a00 | push 0 // 56 | push esi // e8???????? | $sequence_1 = { 50 c745ac44000000 e8???????? 83c40c 8d4df0 51 } // n = 6, score = 200 // 50 | push eax // c745ac44000000 | mov dword ptr [ebp - 0x54], 0x44 // e8???????? | // 83c40c | add esp, 0xc // 8d4df0 | lea ecx, [ebp - 0x10] // 51 | push ecx $sequence_2 = { e9???????? 83f80d 750a be???????? e9???????? 83f814 } // n = 6, score = 200 // e9???????? | // 83f80d | cmp eax, 0xd // 750a | jne 0xc // be???????? | // e9???????? | // 83f814 | cmp eax, 0x14 $sequence_3 = { 75de 33c0 eb05 1bc0 83d8ff 85c0 0f848e000000 } // n = 7, score = 200 // 75de | jne 0xffffffe0 // 33c0 | xor eax, eax // eb05 | jmp 7 // 1bc0 | sbb eax, eax // 83d8ff | sbb eax, -1 // 85c0 | test eax, eax // 0f848e000000 | je 0x94 $sequence_4 = { 75f9 8dbdfcf8ffff 2bc1 8bf1 } // n = 4, score = 200 // 75f9 | jne 0xfffffffb // 8dbdfcf8ffff | lea edi, [ebp - 0x704] // 2bc1 | sub eax, ecx // 8bf1 | mov esi, ecx $sequence_5 = { 8d8dfcfdffff 51 50 ff15???????? b9???????? 8d85fcfdffff 8d9b00000000 } // n = 7, score = 200 // 8d8dfcfdffff | lea ecx, [ebp - 0x204] // 51 | push ecx // 50 | push eax // ff15???????? | // b9???????? | // 8d85fcfdffff | lea eax, [ebp - 0x204] // 8d9b00000000 | lea ebx, [ebx] $sequence_6 = { 8b450c 3d00010000 740b 3d04010000 0f853b020000 56 e8???????? } // n = 7, score = 200 // 8b450c | mov eax, dword ptr [ebp + 0xc] // 3d00010000 | cmp eax, 0x100 // 740b | je 0xd // 3d04010000 | cmp eax, 0x104 // 0f853b020000 | jne 0x241 // 56 | push esi // e8???????? | $sequence_7 = { e8???????? 5e 8b550c 8b4508 8b0d???????? 57 } // n = 6, score = 200 // e8???????? | // 5e | pop esi // 8b550c | mov edx, dword ptr [ebp + 0xc] // 8b4508 | mov eax, dword ptr [ebp + 8] // 8b0d???????? | // 57 | push edi $sequence_8 = { e9???????? 83f821 750a be???????? e9???????? } // n = 5, score = 200 // e9???????? | // 83f821 | cmp eax, 0x21 // 750a | jne 0xc // be???????? | // e9???????? | $sequence_9 = { 85c0 0f848e000000 56 57 b980000000 8db5fcfdffff bf???????? } // n = 7, score = 200 // 85c0 | test eax, eax // 0f848e000000 | je 0x94 // 56 | push esi // 57 | push edi // b980000000 | mov ecx, 0x80 // 8db5fcfdffff | lea esi, [ebp - 0x204] // bf???????? | condition: 7 of them and filesize < 196608 }
/* Yara Rule Set Author: Florian Roth Date: 2015-09-01 Identifier: Rocket Kitten Keylogger */ rule win_woolger_w0 { meta: description = "Detects Keylogger used in Rocket Kitten APT" author = "Florian Roth" reference = "https://goo.gl/SjQhlp" date = "2015-09-01" super_rule = 1 hash1 = "1c9e519dca0468a87322bebe2a06741136de7969a4eb3efda0ab8db83f0807b4" hash2 = "495a15f9f30d6f6096a97c2bd8cc5edd4d78569b8d541b1d5a64169f8109bc5b" malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.woolger" malpedia_version = "20170521" malpedia_license = "CC BY-NC-SA 4.0" malpedia_sharing = "TLP:WHITE" strings: $x1 = "\\Release\\CWoolger.pdb" ascii $x2 = "WoolenLoger\\obj\\x86\\Release" ascii $x3 = "D:\\Yaser Logers\\" $z1 = "woolger" fullword wide $s1 = "oShellLink.TargetPath = \"" fullword ascii $s2 = "wscript.exe " fullword ascii $s3 = "strSTUP = WshShell.SpecialFolders(\"Startup\")" fullword ascii $s4 = "[CapsLock]" fullword ascii condition: /* File detection */ (uint16(0) == 0x5a4d and filesize < 200KB and (1 of ($x*) or ($z1 and 2 of ($s*)))) or /* Memory detection */ ($z1 and all of ($s*)) }
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