SYMBOLCOMMON_NAMEaka. SYNONYMS
win.lolsnif (Back to overview)

LOLSnif


There is no description at this point.

References
2020-08-28CheckpointCheck Point Research
@online{research:20200828:gozi:944c005, author = {Check Point Research}, title = {{Gozi: The Malware with a Thousand Faces}}, date = {2020-08-28}, organization = {Checkpoint}, url = {https://research.checkpoint.com/2020/gozi-the-malware-with-a-thousand-faces/}, language = {English}, urldate = {2020-09-01} } Gozi: The Malware with a Thousand Faces
DreamBot ISFB LOLSnif SaiGon
2020-07-28Medium (@vishal_thakur)Vishal Thakur
@online{thakur:20200728:lolsnif:33c59cf, author = {Vishal Thakur}, title = {{LOLSnif Malware}}, date = {2020-07-28}, organization = {Medium (@vishal_thakur)}, url = {https://medium.com/@vishal_thakur/lolsnif-malware-e6cb2e731e63}, language = {English}, urldate = {2020-08-05} } LOLSnif Malware
LOLSnif
2020-05-14TelekomThomas Barabosch
@online{barabosch:20200514:lolsnif:c7a2736, author = {Thomas Barabosch}, title = {{LOLSnif – Tracking Another Ursnif-Based Targeted Campaign}}, date = {2020-05-14}, organization = {Telekom}, url = {https://www.telekom.com/en/blog/group/article/lolsnif-tracking-another-ursnif-based-targeted-campaign-600062}, language = {English}, urldate = {2020-05-14} } LOLSnif – Tracking Another Ursnif-Based Targeted Campaign
LOLSnif
2020-04-24The DFIR ReportThe DFIR Report
@online{report:20200424:ursnif:e983798, author = {The DFIR Report}, title = {{Ursnif via LOLbins}}, date = {2020-04-24}, organization = {The DFIR Report}, url = {https://thedfirreport.com/2020/04/24/ursnif-via-lolbins/}, language = {English}, urldate = {2021-03-16} } Ursnif via LOLbins
Cobalt Strike LOLSnif TeamSpy
2020-01-22Thomas Barabosch
@online{barabosch:20200122:malware:f805475, author = {Thomas Barabosch}, title = {{The malware analyst’s guide to PE timestamps}}, date = {2020-01-22}, url = {https://0xc0decafe.com/malware-analyst-guide-to-pe-timestamps/}, language = {English}, urldate = {2021-01-25} } The malware analyst’s guide to PE timestamps
Azorult Gozi IcedID ISFB LOLSnif SUNBURST TEARDROP
Yara Rules
[TLP:WHITE] win_lolsnif_auto (20211008 | Detects win.lolsnif.)
rule win_lolsnif_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-10-07"
        version = "1"
        description = "Detects win.lolsnif."
        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.lolsnif"
        malpedia_rule_date = "20211007"
        malpedia_hash = "e5b790e0f888f252d49063a1251ca60ec2832535"
        malpedia_version = "20211008"
        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???????? 3bc7 8b4d20 8901 7508 ff15???????? }
            // n = 6, score = 200
            //   e8????????           |                     
            //   3bc7                 | cmp                 eax, edi
            //   8b4d20               | mov                 ecx, dword ptr [ebp + 0x20]
            //   8901                 | mov                 dword ptr [ecx], eax
            //   7508                 | jne                 0xa
            //   ff15????????         |                     

        $sequence_1 = { 8945f8 e8???????? b8???????? 83c9ff f00fc108 ff75f8 ff15???????? }
            // n = 7, score = 200
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   e8????????           |                     
            //   b8????????           |                     
            //   83c9ff               | or                  ecx, 0xffffffff
            //   f00fc108             | lock xadd           dword ptr [eax], ecx
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   ff15????????         |                     

        $sequence_2 = { 8945f0 53 8d45ec 50 6a02 ffd6 bf02010000 }
            // n = 7, score = 200
            //   8945f0               | mov                 dword ptr [ebp - 0x10], eax
            //   53                   | push                ebx
            //   8d45ec               | lea                 eax, dword ptr [ebp - 0x14]
            //   50                   | push                eax
            //   6a02                 | push                2
            //   ffd6                 | call                esi
            //   bf02010000           | mov                 edi, 0x102

        $sequence_3 = { 53 8945f4 68???????? 8d45f4 895df8 e8???????? }
            // n = 6, score = 200
            //   53                   | push                ebx
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   68????????           |                     
            //   8d45f4               | lea                 eax, dword ptr [ebp - 0xc]
            //   895df8               | mov                 dword ptr [ebp - 8], ebx
            //   e8????????           |                     

        $sequence_4 = { 7551 8b473c 2441 3c40 }
            // n = 4, score = 200
            //   7551                 | jne                 0x53
            //   8b473c               | mov                 eax, dword ptr [edi + 0x3c]
            //   2441                 | and                 al, 0x41
            //   3c40                 | cmp                 al, 0x40

        $sequence_5 = { e8???????? 8b45fc 894604 8b451c 3bc3 }
            // n = 5, score = 200
            //   e8????????           |                     
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   894604               | mov                 dword ptr [esi + 4], eax
            //   8b451c               | mov                 eax, dword ptr [ebp + 0x1c]
            //   3bc3                 | cmp                 eax, ebx

        $sequence_6 = { 7413 8b4010 3bc6 740c 8b5508 890a }
            // n = 6, score = 200
            //   7413                 | je                  0x15
            //   8b4010               | mov                 eax, dword ptr [eax + 0x10]
            //   3bc6                 | cmp                 eax, esi
            //   740c                 | je                  0xe
            //   8b5508               | mov                 edx, dword ptr [ebp + 8]
            //   890a                 | mov                 dword ptr [edx], ecx

        $sequence_7 = { 8bf0 83feff 743e bf???????? }
            // n = 4, score = 200
            //   8bf0                 | mov                 esi, eax
            //   83feff               | cmp                 esi, -1
            //   743e                 | je                  0x40
            //   bf????????           |                     

        $sequence_8 = { 0f84fe030000 68???????? ff15???????? e9???????? 6a02 59 }
            // n = 6, score = 200
            //   0f84fe030000         | je                  0x404
            //   68????????           |                     
            //   ff15????????         |                     
            //   e9????????           |                     
            //   6a02                 | push                2
            //   59                   | pop                 ecx

        $sequence_9 = { 83483c40 8b4508 8a4e04 80e104 f6d9 1bc9 83e106 }
            // n = 7, score = 200
            //   83483c40             | or                  dword ptr [eax + 0x3c], 0x40
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8a4e04               | mov                 cl, byte ptr [esi + 4]
            //   80e104               | and                 cl, 4
            //   f6d9                 | neg                 cl
            //   1bc9                 | sbb                 ecx, ecx
            //   83e106               | and                 ecx, 6

    condition:
        7 of them and filesize < 425984
}
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