Actor(s): Comment Crew
There is no description at this point.
rule win_glooxmail_auto { meta: author = "Felix Bilstein - yara-signator at cocacoding dot com" date = "2023-07-11" version = "1" description = "Detects win.glooxmail." 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.glooxmail" malpedia_rule_date = "20230705" malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41" malpedia_version = "20230715" 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 = { e8???????? 83c420 6aff 53 8bf7 c745fc02000000 e8???????? } // n = 7, score = 100 // e8???????? | // 83c420 | add esp, 0x20 // 6aff | push -1 // 53 | push ebx // 8bf7 | mov esi, edi // c745fc02000000 | mov dword ptr [ebp - 4], 2 // e8???????? | $sequence_1 = { aa 8d842471020000 53 50 889c2478020000 e8???????? 8d8600020000 } // n = 7, score = 100 // aa | stosb byte ptr es:[edi], al // 8d842471020000 | lea eax, [esp + 0x271] // 53 | push ebx // 50 | push eax // 889c2478020000 | mov byte ptr [esp + 0x278], bl // e8???????? | // 8d8600020000 | lea eax, [esi + 0x200] $sequence_2 = { b001 c20400 55 8dac24fcfffeff b804000100 e8???????? } // n = 6, score = 100 // b001 | mov al, 1 // c20400 | ret 4 // 55 | push ebp // 8dac24fcfffeff | lea ebp, [esp - 0x10004] // b804000100 | mov eax, 0x10004 // e8???????? | $sequence_3 = { 68???????? 8d4d1c e8???????? c645fc01 68???????? 8d4d00 } // n = 6, score = 100 // 68???????? | // 8d4d1c | lea ecx, [ebp + 0x1c] // e8???????? | // c645fc01 | mov byte ptr [ebp - 4], 1 // 68???????? | // 8d4d00 | lea ecx, [ebp] $sequence_4 = { 33db 43 e8???????? ff45f0 8b45f0 3b45e4 } // n = 6, score = 100 // 33db | xor ebx, ebx // 43 | inc ebx // e8???????? | // ff45f0 | inc dword ptr [ebp - 0x10] // 8b45f0 | mov eax, dword ptr [ebp - 0x10] // 3b45e4 | cmp eax, dword ptr [ebp - 0x1c] $sequence_5 = { 8d8d54ffffff e8???????? e9???????? 83c007 50 89857cfeffff 68???????? } // n = 7, score = 100 // 8d8d54ffffff | lea ecx, [ebp - 0xac] // e8???????? | // e9???????? | // 83c007 | add eax, 7 // 50 | push eax // 89857cfeffff | mov dword ptr [ebp - 0x184], eax // 68???????? | $sequence_6 = { 8b4d08 85c9 741b 8b01 57 ff5064 8bf8 } // n = 7, score = 100 // 8b4d08 | mov ecx, dword ptr [ebp + 8] // 85c9 | test ecx, ecx // 741b | je 0x1d // 8b01 | mov eax, dword ptr [ecx] // 57 | push edi // ff5064 | call dword ptr [eax + 0x64] // 8bf8 | mov edi, eax $sequence_7 = { 8d5920 8bc3 e8???????? 8945fc 85db 7505 e8???????? } // n = 7, score = 100 // 8d5920 | lea ebx, [ecx + 0x20] // 8bc3 | mov eax, ebx // e8???????? | // 8945fc | mov dword ptr [ebp - 4], eax // 85db | test ebx, ebx // 7505 | jne 7 // e8???????? | $sequence_8 = { c645fc01 85f6 742c 8b4508 8906 8b450c 894604 } // n = 7, score = 100 // c645fc01 | mov byte ptr [ebp - 4], 1 // 85f6 | test esi, esi // 742c | je 0x2e // 8b4508 | mov eax, dword ptr [ebp + 8] // 8906 | mov dword ptr [esi], eax // 8b450c | mov eax, dword ptr [ebp + 0xc] // 894604 | mov dword ptr [esi + 4], eax $sequence_9 = { 68???????? 8d4db4 c645fc07 e8???????? 8d4d98 51 8d4dd0 } // n = 7, score = 100 // 68???????? | // 8d4db4 | lea ecx, [ebp - 0x4c] // c645fc07 | mov byte ptr [ebp - 4], 7 // e8???????? | // 8d4d98 | lea ecx, [ebp - 0x68] // 51 | push ecx // 8d4dd0 | lea ecx, [ebp - 0x30] condition: 7 of them and filesize < 761856 }
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