Actor(s): Samurai Panda, Stone Panda
There is no description at this point.
rule win_poldat_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-01-25" version = "1" description = "Detects win.poldat." 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.poldat" 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 = { 8d859cf9ffff 68???????? 50 e8???????? 83c40c 8d85acfdffff } // n = 6, score = 100 // 8d859cf9ffff | lea eax, [ebp - 0x664] // 68???????? | // 50 | push eax // e8???????? | // 83c40c | add esp, 0xc // 8d85acfdffff | lea eax, [ebp - 0x254] $sequence_1 = { 81e1ff000000 33d2 8a91d09a4100 66ff849690040000 } // n = 4, score = 100 // 81e1ff000000 | and ecx, 0xff // 33d2 | xor edx, edx // 8a91d09a4100 | mov dl, byte ptr [ecx + 0x419ad0] // 66ff849690040000 | inc word ptr [esi + edx*4 + 0x490] $sequence_2 = { 8d8598fbffff 50 e8???????? 83c414 8d8598fbffff 6a00 50 } // n = 7, score = 100 // 8d8598fbffff | lea eax, [ebp - 0x468] // 50 | push eax // e8???????? | // 83c414 | add esp, 0x14 // 8d8598fbffff | lea eax, [ebp - 0x468] // 6a00 | push 0 // 50 | push eax $sequence_3 = { 85c0 0f8483000000 8b5608 8b0e } // n = 4, score = 100 // 85c0 | test eax, eax // 0f8483000000 | je 0x89 // 8b5608 | mov edx, dword ptr [esi + 8] // 8b0e | mov ecx, dword ptr [esi] $sequence_4 = { c645d62d c645d76e c645d820 c645d931 c645da26 c645db72 c645dc75 } // n = 7, score = 100 // c645d62d | mov byte ptr [ebp - 0x2a], 0x2d // c645d76e | mov byte ptr [ebp - 0x29], 0x6e // c645d820 | mov byte ptr [ebp - 0x28], 0x20 // c645d931 | mov byte ptr [ebp - 0x27], 0x31 // c645da26 | mov byte ptr [ebp - 0x26], 0x26 // c645db72 | mov byte ptr [ebp - 0x25], 0x72 // c645dc75 | mov byte ptr [ebp - 0x24], 0x75 $sequence_5 = { c645e578 c645e665 c645e720 c645e822 c645e925 c645ea73 } // n = 6, score = 100 // c645e578 | mov byte ptr [ebp - 0x1b], 0x78 // c645e665 | mov byte ptr [ebp - 0x1a], 0x65 // c645e720 | mov byte ptr [ebp - 0x19], 0x20 // c645e822 | mov byte ptr [ebp - 0x18], 0x22 // c645e925 | mov byte ptr [ebp - 0x17], 0x25 // c645ea73 | mov byte ptr [ebp - 0x16], 0x73 $sequence_6 = { a3???????? 50 f3a5 53 e8???????? } // n = 5, score = 100 // a3???????? | // 50 | push eax // f3a5 | rep movsd dword ptr es:[edi], dword ptr [esi] // 53 | push ebx // e8???????? | $sequence_7 = { c3 8b4720 895718 3bc2 750a c74720a0324000 } // n = 6, score = 100 // c3 | ret // 8b4720 | mov eax, dword ptr [edi + 0x20] // 895718 | mov dword ptr [edi + 0x18], edx // 3bc2 | cmp eax, edx // 750a | jne 0xc // c74720a0324000 | mov dword ptr [edi + 0x20], 0x4032a0 $sequence_8 = { 8b06 40 8906 8b461c c70005000000 8b4604 } // n = 6, score = 100 // 8b06 | mov eax, dword ptr [esi] // 40 | inc eax // 8906 | mov dword ptr [esi], eax // 8b461c | mov eax, dword ptr [esi + 0x1c] // c70005000000 | mov dword ptr [eax], 5 // 8b4604 | mov eax, dword ptr [esi + 4] $sequence_9 = { 8b461c 85c0 0f8485030000 833e00 0f847c030000 8b542418 } // n = 6, score = 100 // 8b461c | mov eax, dword ptr [esi + 0x1c] // 85c0 | test eax, eax // 0f8485030000 | je 0x38b // 833e00 | cmp dword ptr [esi], 0 // 0f847c030000 | je 0x382 // 8b542418 | mov edx, dword ptr [esp + 0x18] condition: 7 of them and filesize < 247808 }
If your designated proposal does not fit in any other category, feel free to write a free-text in the comment field below.
Please propose all changes regarding references on the Malpedia library page
Your suggestion will be reviewed before being published. Thank you for contributing!
YYYY-MM-DD
YYYY-MM
YYYY