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 = "2022-08-05" 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 = "20220805" malpedia_hash = "6ec06c64bcfdbeda64eff021c766b4ce34542b71" malpedia_version = "20220808" 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 = { 83e103 50 f3a4 ff15???????? 6a00 ff15???????? 6a00 } // n = 7, score = 200 // 83e103 | and ecx, 3 // 50 | push eax // f3a4 | rep movsb byte ptr es:[edi], byte ptr [esi] // ff15???????? | // 6a00 | push 0 // ff15???????? | // 6a00 | push 0 $sequence_1 = { ffd3 6a00 6a00 6a00 8d8dd4f4ffff 51 } // n = 6, score = 200 // ffd3 | call ebx // 6a00 | push 0 // 6a00 | push 0 // 6a00 | push 0 // 8d8dd4f4ffff | lea ecx, [ebp - 0xb2c] // 51 | push ecx $sequence_2 = { 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_3 = { 56 8985f4f4ffff ffd7 8dbdfcf8ffff 8985f8f4ffff c685fcf8ffff00 } // n = 6, score = 200 // 56 | push esi // 8985f4f4ffff | mov dword ptr [ebp - 0xb0c], eax // ffd7 | call edi // 8dbdfcf8ffff | lea edi, [ebp - 0x704] // 8985f8f4ffff | mov dword ptr [ebp - 0xb08], eax // c685fcf8ffff00 | mov byte ptr [ebp - 0x704], 0 $sequence_4 = { 8bf0 56 57 e8???????? 56 e8???????? 8b4dfc } // n = 7, score = 200 // 8bf0 | mov esi, eax // 56 | push esi // 57 | push edi // e8???????? | // 56 | push esi // e8???????? | // 8b4dfc | mov ecx, dword ptr [ebp - 4] $sequence_5 = { 85c0 7506 50 e8???????? 68???????? 68b80b0000 } // n = 6, score = 200 // 85c0 | test eax, eax // 7506 | jne 8 // 50 | push eax // e8???????? | // 68???????? | // 68b80b0000 | push 0xbb8 $sequence_6 = { 83f828 750a be???????? e9???????? 83f82c 750a be???????? } // n = 7, score = 200 // 83f828 | cmp eax, 0x28 // 750a | jne 0xc // be???????? | // e9???????? | // 83f82c | cmp eax, 0x2c // 750a | jne 0xc // be???????? | $sequence_7 = { f3a4 ff15???????? 6a00 ff15???????? 6a00 50 } // n = 6, score = 200 // f3a4 | rep movsb byte ptr es:[edi], byte ptr [esi] // ff15???????? | // 6a00 | push 0 // ff15???????? | // 6a00 | push 0 // 50 | push eax $sequence_8 = { 66a5 8dbdfcf8ffff 4f 8a4701 47 84c0 } // n = 6, score = 200 // 66a5 | movsw word ptr es:[edi], word ptr [esi] // 8dbdfcf8ffff | lea edi, [ebp - 0x704] // 4f | dec edi // 8a4701 | mov al, byte ptr [edi + 1] // 47 | inc edi // 84c0 | test al, al $sequence_9 = { 8bf0 83c408 85f6 7465 57 6a02 } // n = 6, score = 200 // 8bf0 | mov esi, eax // 83c408 | add esp, 8 // 85f6 | test esi, esi // 7465 | je 0x67 // 57 | push edi // 6a02 | push 2 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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