Actor(s): TA505
Cisco Talos reports that this is a data exfiltration tool used by TA505.
rule win_teleport_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2026-09-17" version = "1" description = "Detects win.teleport." 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.teleport" malpedia_rule_date = "20260916" malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6" malpedia_version = "20260917" 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 = { 83c408 c7466800000000 33c0 c7466c07000000 66894658 8b4644 53 } // n = 7, score = 100 // 83c408 | add esp, 8 // c7466800000000 | mov dword ptr [esi + 0x68], 0 // 33c0 | xor eax, eax // c7466c07000000 | mov dword ptr [esi + 0x6c], 7 // 66894658 | mov word ptr [esi + 0x58], ax // 8b4644 | mov eax, dword ptr [esi + 0x44] // 53 | push ebx $sequence_1 = { 894824 c6401c01 894dfc 8d85d0feffff b912000000 eb50 } // n = 6, score = 100 // 894824 | mov dword ptr [eax + 0x24], ecx // c6401c01 | mov byte ptr [eax + 0x1c], 1 // 894dfc | mov dword ptr [ebp - 4], ecx // 8d85d0feffff | lea eax, [ebp - 0x130] // b912000000 | mov ecx, 0x12 // eb50 | jmp 0x52 $sequence_2 = { 8945c8 8d45cc 50 56 e8???????? } // n = 5, score = 100 // 8945c8 | mov dword ptr [ebp - 0x38], eax // 8d45cc | lea eax, [ebp - 0x34] // 50 | push eax // 56 | push esi // e8???????? | $sequence_3 = { 8986bc000000 83fa08 7241 8b8dd8f7ffff 8d145502000000 8bc1 } // n = 6, score = 100 // 8986bc000000 | mov dword ptr [esi + 0xbc], eax // 83fa08 | cmp edx, 8 // 7241 | jb 0x43 // 8b8dd8f7ffff | mov ecx, dword ptr [ebp - 0x828] // 8d145502000000 | lea edx, [edx*2 + 2] // 8bc1 | mov eax, ecx $sequence_4 = { 83f301 3345f8 83f001 8b97a4000000 8945ec 33d3 8bc3 } // n = 7, score = 100 // 83f301 | xor ebx, 1 // 3345f8 | xor eax, dword ptr [ebp - 8] // 83f001 | xor eax, 1 // 8b97a4000000 | mov edx, dword ptr [edi + 0xa4] // 8945ec | mov dword ptr [ebp - 0x14], eax // 33d3 | xor edx, ebx // 8bc3 | mov eax, ebx $sequence_5 = { 53 e8???????? c645fc02 8b95bcf7ffff 83fa10 722f 8b8da8f7ffff } // n = 7, score = 100 // 53 | push ebx // e8???????? | // c645fc02 | mov byte ptr [ebp - 4], 2 // 8b95bcf7ffff | mov edx, dword ptr [ebp - 0x844] // 83fa10 | cmp edx, 0x10 // 722f | jb 0x31 // 8b8da8f7ffff | mov ecx, dword ptr [ebp - 0x858] $sequence_6 = { 8d85e8fdffff 6808020000 c745fc00000000 6a00 50 } // n = 5, score = 100 // 8d85e8fdffff | lea eax, [ebp - 0x218] // 6808020000 | push 0x208 // c745fc00000000 | mov dword ptr [ebp - 4], 0 // 6a00 | push 0 // 50 | push eax $sequence_7 = { eb1a 8d45fc 50 8b04bde83e4300 ff743018 } // n = 5, score = 100 // eb1a | jmp 0x1c // 8d45fc | lea eax, [ebp - 4] // 50 | push eax // 8b04bde83e4300 | mov eax, dword ptr [edi*4 + 0x433ee8] // ff743018 | push dword ptr [eax + esi + 0x18] $sequence_8 = { 8bf8 89565c 8b4640 897e58 89bd78f7ffff 8b7e40 8b4850 } // n = 7, score = 100 // 8bf8 | mov edi, eax // 89565c | mov dword ptr [esi + 0x5c], edx // 8b4640 | mov eax, dword ptr [esi + 0x40] // 897e58 | mov dword ptr [esi + 0x58], edi // 89bd78f7ffff | mov dword ptr [ebp - 0x888], edi // 8b7e40 | mov edi, dword ptr [esi + 0x40] // 8b4850 | mov ecx, dword ptr [eax + 0x50] $sequence_9 = { c1eb08 330c85a0f64200 334fd8 8b45f0 c1e810 0fb6c0 } // n = 6, score = 100 // c1eb08 | shr ebx, 8 // 330c85a0f64200 | xor ecx, dword ptr [eax*4 + 0x42f6a0] // 334fd8 | xor ecx, dword ptr [edi - 0x28] // 8b45f0 | mov eax, dword ptr [ebp - 0x10] // c1e810 | shr eax, 0x10 // 0fb6c0 | movzx eax, al condition: 7 of them and filesize < 458752 }
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