SYMBOLCOMMON_NAMEaka. SYNONYMS
win.slub (Back to overview)

SLUB


There is no description at this point.

References
2020-12-15Trend MicroWilliam Gamazo Sanchez
@online{sanchez:20201215:who:c723930, author = {William Gamazo Sanchez}, title = {{Who is the Threat Actor Behind Operation Earth Kitsune?}}, date = {2020-12-15}, organization = {Trend Micro}, url = {https://www.trendmicro.com/en_us/research/20/l/who-is-the-threat-actor-behind-operation-earth-kitsune-.html}, language = {English}, urldate = {2020-12-16} } Who is the Threat Actor Behind Operation Earth Kitsune?
Freenki Loader SLUB
2020-10-28Trend MicroWilliam Gamazo Sanchez, Aliakbar Zahravi, Elliot Cao, Cedric Pernet, Daniel Lunghi, Jaromír Hořejší, Joseph C Chen, John Zhang
@online{sanchez:20201028:operation:7f4b906, author = {William Gamazo Sanchez and Aliakbar Zahravi and Elliot Cao and Cedric Pernet and Daniel Lunghi and Jaromír Hořejší and Joseph C Chen and John Zhang}, title = {{Operation Earth Kitsune: A Dance of Two New Backdoors}}, date = {2020-10-28}, organization = {Trend Micro}, url = {https://www.trendmicro.com/en_us/research/20/j/operation-earth-kitsune-a-dance-of-two-new-backdoors.html}, language = {English}, urldate = {2020-10-29} } Operation Earth Kitsune: A Dance of Two New Backdoors
AgfSpy DneSpy SLUB
2020-10-19Trend MicroNelson William Gamazo Sanchez, Aliakbar Zahravi, John Zhang, Eliot Cao, Cedric Pernet, Daniel Lunghi, Jaromír Hořejší, Joseph C. Chen
@techreport{sanchez:20201019:operation:e613dd2, author = {Nelson William Gamazo Sanchez and Aliakbar Zahravi and John Zhang and Eliot Cao and Cedric Pernet and Daniel Lunghi and Jaromír Hořejší and Joseph C. Chen}, title = {{Operation Earth Kitsune: Tracking SLUB’s Current Operations}}, date = {2020-10-19}, institution = {Trend Micro}, url = {https://documents.trendmicro.com/assets/white_papers/wp-operation-earth-kitsune.pdf}, language = {English}, urldate = {2020-10-21} } Operation Earth Kitsune: Tracking SLUB’s Current Operations
SLUB
2019-10-02Virus BulletinDaniel Lunghi, Jaromír Hořejší
@techreport{lunghi:20191002:abusing:3c9a1b7, author = {Daniel Lunghi and Jaromír Hořejší}, title = {{Abusing third-party cloud services in targeted attacks}}, date = {2019-10-02}, institution = {Virus Bulletin}, url = {https://www.virusbulletin.com/uploads/pdf/conference_slides/2019/VB2019-LunghiHorejsi.pdf}, language = {English}, urldate = {2020-01-13} } Abusing third-party cloud services in targeted attacks
BadNews SLUB
2019-03-07Trend MicroCedric Pernet, Daniel Lunghi, Jaromír Hořejší, Joseph Chen
@online{pernet:20190307:new:593e5b1, author = {Cedric Pernet and Daniel Lunghi and Jaromír Hořejší and Joseph Chen}, title = {{New SLUB Backdoor Uses GitHub, Communicates via Slack}}, date = {2019-03-07}, organization = {Trend Micro}, url = {https://blog.trendmicro.com/trendlabs-security-intelligence/new-slub-backdoor-uses-github-communicates-via-slack/}, language = {English}, urldate = {2019-10-18} } New SLUB Backdoor Uses GitHub, Communicates via Slack
SLUB
Yara Rules
[TLP:WHITE] win_slub_auto (20220808 | Detects win.slub.)
rule win_slub_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        version = "1"
        description = "Detects win.slub."
        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.slub"
        malpedia_rule_date = "20220805"
        malpedia_hash = "6ec06c64bcfdbeda64eff021c766b4ce34542b71"
        malpedia_version = "20220808"
        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 = { 8b86f0000000 badc020000 8b8ef4000000 eb11 8b866c010000 bae8020000 8b8e70010000 }
            // n = 7, score = 100
            //   8b86f0000000         | mov                 eax, dword ptr [esi + 0xf0]
            //   badc020000           | mov                 edx, 0x2dc
            //   8b8ef4000000         | mov                 ecx, dword ptr [esi + 0xf4]
            //   eb11                 | jmp                 0x13
            //   8b866c010000         | mov                 eax, dword ptr [esi + 0x16c]
            //   bae8020000           | mov                 edx, 0x2e8
            //   8b8e70010000         | mov                 ecx, dword ptr [esi + 0x170]

        $sequence_1 = { 8bcb e8???????? 807e6d00 746e 8bcb e8???????? 84c0 }
            // n = 7, score = 100
            //   8bcb                 | mov                 ecx, ebx
            //   e8????????           |                     
            //   807e6d00             | cmp                 byte ptr [esi + 0x6d], 0
            //   746e                 | je                  0x70
            //   8bcb                 | mov                 ecx, ebx
            //   e8????????           |                     
            //   84c0                 | test                al, al

        $sequence_2 = { 8d4dc8 c745fc08000000 e8???????? 8b03 2b45e8 034510 f6451401 }
            // n = 7, score = 100
            //   8d4dc8               | lea                 ecx, [ebp - 0x38]
            //   c745fc08000000       | mov                 dword ptr [ebp - 4], 8
            //   e8????????           |                     
            //   8b03                 | mov                 eax, dword ptr [ebx]
            //   2b45e8               | sub                 eax, dword ptr [ebp - 0x18]
            //   034510               | add                 eax, dword ptr [ebp + 0x10]
            //   f6451401             | test                byte ptr [ebp + 0x14], 1

        $sequence_3 = { 8b4210 83e117 894a0c 23c1 752f 8b07 c745fc0a000000 }
            // n = 7, score = 100
            //   8b4210               | mov                 eax, dword ptr [edx + 0x10]
            //   83e117               | and                 ecx, 0x17
            //   894a0c               | mov                 dword ptr [edx + 0xc], ecx
            //   23c1                 | and                 eax, ecx
            //   752f                 | jne                 0x31
            //   8b07                 | mov                 eax, dword ptr [edi]
            //   c745fc0a000000       | mov                 dword ptr [ebp - 4], 0xa

        $sequence_4 = { 8b7d08 7f21 7c0b 8b7dd8 3b7868 8b7d08 }
            // n = 6, score = 100
            //   8b7d08               | mov                 edi, dword ptr [ebp + 8]
            //   7f21                 | jg                  0x23
            //   7c0b                 | jl                  0xd
            //   8b7dd8               | mov                 edi, dword ptr [ebp - 0x28]
            //   3b7868               | cmp                 edi, dword ptr [eax + 0x68]
            //   8b7d08               | mov                 edi, dword ptr [ebp + 8]

        $sequence_5 = { 837e2400 7507 c7462460338a00 55 68d01b0000 6a01 51 }
            // n = 7, score = 100
            //   837e2400             | cmp                 dword ptr [esi + 0x24], 0
            //   7507                 | jne                 9
            //   c7462460338a00       | mov                 dword ptr [esi + 0x24], 0x8a3360
            //   55                   | push                ebp
            //   68d01b0000           | push                0x1bd0
            //   6a01                 | push                1
            //   51                   | push                ecx

        $sequence_6 = { 5b 83c408 c3 81fa2b4e0000 0f8f77070000 0f842f070000 81c24bd8ffff }
            // n = 7, score = 100
            //   5b                   | pop                 ebx
            //   83c408               | add                 esp, 8
            //   c3                   | ret                 
            //   81fa2b4e0000         | cmp                 edx, 0x4e2b
            //   0f8f77070000         | jg                  0x77d
            //   0f842f070000         | je                  0x735
            //   81c24bd8ffff         | add                 edx, 0xffffd84b

        $sequence_7 = { e8???????? 8b85e0feffff 83c408 83785c10 8d4848 7202 8b09 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8b85e0feffff         | mov                 eax, dword ptr [ebp - 0x120]
            //   83c408               | add                 esp, 8
            //   83785c10             | cmp                 dword ptr [eax + 0x5c], 0x10
            //   8d4848               | lea                 ecx, [eax + 0x48]
            //   7202                 | jb                  4
            //   8b09                 | mov                 ecx, dword ptr [ecx]

        $sequence_8 = { 7415 50 ff15???????? 83c404 894704 85c0 0f84a0000000 }
            // n = 7, score = 100
            //   7415                 | je                  0x17
            //   50                   | push                eax
            //   ff15????????         |                     
            //   83c404               | add                 esp, 4
            //   894704               | mov                 dword ptr [edi + 4], eax
            //   85c0                 | test                eax, eax
            //   0f84a0000000         | je                  0xa6

        $sequence_9 = { 8d6e70 898ee0000000 8bd9 ff30 894c2424 6a0a 51 }
            // n = 7, score = 100
            //   8d6e70               | lea                 ebp, [esi + 0x70]
            //   898ee0000000         | mov                 dword ptr [esi + 0xe0], ecx
            //   8bd9                 | mov                 ebx, ecx
            //   ff30                 | push                dword ptr [eax]
            //   894c2424             | mov                 dword ptr [esp + 0x24], ecx
            //   6a0a                 | push                0xa
            //   51                   | push                ecx

    condition:
        7 of them and filesize < 1785856
}
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