Actor(s): Comment Crew
There is no description at this point.
rule win_manitsme_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2020-12-22" version = "1" description = "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.manitsme" malpedia_rule_date = "20201222" malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130" malpedia_version = "20201023" 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 = { 7408 3c2f 7404 3c3b 750b 56 } // n = 6, score = 100 // 7408 | je 0xa // 3c2f | cmp al, 0x2f // 7404 | je 6 // 3c3b | cmp al, 0x3b // 750b | jne 0xd // 56 | push esi $sequence_1 = { 7510 80fb0d 740b c68434100400000d 83c601 888c3410040000 83c001 } // n = 7, score = 100 // 7510 | jne 0x12 // 80fb0d | cmp bl, 0xd // 740b | je 0xd // c68434100400000d | mov byte ptr [esp + esi + 0x410], 0xd // 83c601 | add esi, 1 // 888c3410040000 | mov byte ptr [esp + esi + 0x410], cl // 83c001 | add eax, 1 $sequence_2 = { c705????????bfab0010 c705????????bfa20010 c705????????29a20010 c705????????b8a10010 } // n = 4, score = 100 // c705????????bfab0010 | // c705????????bfa20010 | // c705????????29a20010 | // c705????????b8a10010 | $sequence_3 = { 57 ff15???????? 8bc8 83e8ff f7d8 1bc0 23c1 } // n = 7, score = 100 // 57 | push edi // ff15???????? | // 8bc8 | mov ecx, eax // 83e8ff | sub eax, -1 // f7d8 | neg eax // 1bc0 | sbb eax, eax // 23c1 | and eax, ecx $sequence_4 = { 84c9 75f7 2bc2 50 8d84242c010000 55 50 } // n = 7, score = 100 // 84c9 | test cl, cl // 75f7 | jne 0xfffffff9 // 2bc2 | sub eax, edx // 50 | push eax // 8d84242c010000 | lea eax, [esp + 0x12c] // 55 | push ebp // 50 | push eax $sequence_5 = { 8d442418 50 68fc030000 8d4c2424 } // n = 4, score = 100 // 8d442418 | lea eax, [esp + 0x18] // 50 | push eax // 68fc030000 | push 0x3fc // 8d4c2424 | lea ecx, [esp + 0x24] $sequence_6 = { 80fb0d 740b c68434100400000d 83c601 888c3410040000 83c001 83c601 } // n = 7, score = 100 // 80fb0d | cmp bl, 0xd // 740b | je 0xd // c68434100400000d | mov byte ptr [esp + esi + 0x410], 0xd // 83c601 | add esi, 1 // 888c3410040000 | mov byte ptr [esp + esi + 0x410], cl // 83c001 | add eax, 1 // 83c601 | add esi, 1 $sequence_7 = { 57 50 ffd3 8b15???????? } // n = 4, score = 100 // 57 | push edi // 50 | push eax // ffd3 | call ebx // 8b15???????? | $sequence_8 = { ff15???????? 8d942440030000 8bc6 2bd6 8a08 880c02 } // n = 6, score = 100 // ff15???????? | // 8d942440030000 | lea edx, [esp + 0x340] // 8bc6 | mov eax, esi // 2bd6 | sub edx, esi // 8a08 | mov cl, byte ptr [eax] // 880c02 | mov byte ptr [edx + eax], cl $sequence_9 = { 51 687fffffff 68ffff0000 52 ff15???????? } // n = 5, score = 100 // 51 | push ecx // 687fffffff | push 0xffffff7f // 68ffff0000 | push 0xffff // 52 | push edx // ff15???????? | condition: 7 of them and filesize < 212992 }
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