SYMBOLCOMMON_NAMEaka. SYNONYMS
win.strifewater_rat (Back to overview)

StrifeWater RAT

Actor(s): MosesStaff


There is no description at this point.

References
2022-02-15FortinetRotem Sde-Or
@online{sdeor:20220215:guard:196af7f, author = {Rotem Sde-Or}, title = {{Guard Your Drive from DriveGuard: Moses Staff Campaigns Against Israeli Organizations Span Several Months}}, date = {2022-02-15}, organization = {Fortinet}, url = {https://www.fortinet.com/blog/threat-research/guard-your-drive-from-driveguard}, language = {English}, urldate = {2022-03-02} } Guard Your Drive from DriveGuard: Moses Staff Campaigns Against Israeli Organizations Span Several Months
StrifeWater RAT MosesStaff
2022-02-01CybereasonTom Fakterman
@online{fakterman:20220201:strifewater:a2694c3, author = {Tom Fakterman}, title = {{StrifeWater RAT: Iranian APT Moses Staff Adds New Trojan to Ransomware Operations}}, date = {2022-02-01}, organization = {Cybereason}, url = {https://www.cybereason.com/blog/strifewater-rat-iranian-apt-moses-staff-adds-new-trojan-to-ransomware-operations}, language = {English}, urldate = {2022-02-02} } StrifeWater RAT: Iranian APT Moses Staff Adds New Trojan to Ransomware Operations
StrifeWater RAT MosesStaff
Yara Rules
[TLP:WHITE] win_strifewater_rat_auto (20230125 | Detects win.strifewater_rat.)
rule win_strifewater_rat_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.strifewater_rat."
        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.strifewater_rat"
        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 = { 488905???????? ff15???????? 483305???????? 488d1534900600 488bcb 488905???????? }
            // n = 6, score = 100
            //   488905????????       |                     
            //   ff15????????         |                     
            //   483305????????       |                     
            //   488d1534900600       | dec                 eax
            //   488bcb               | lea                 edx, [ebp + 0x150]
            //   488905????????       |                     

        $sequence_1 = { 7511 e8???????? 488bc8 488b10 ff5220 4c8bc8 }
            // n = 6, score = 100
            //   7511                 | add                 edx, edx
            //   e8????????           |                     
            //   488bc8               | dec                 eax
            //   488b10               | movsx               eax, dx
            //   ff5220               | mov                 word ptr [ebp + eax*2 + 0x2720], cx
            //   4c8bc8               | inc                 cx

        $sequence_2 = { 488bd8 ebdd 4533ff 418bdf 4c8d0d1e96faff 4885db 750d }
            // n = 7, score = 100
            //   488bd8               | jge                 0x1ab
            //   ebdd                 | dec                 eax
            //   4533ff               | lea                 ecx, [0x6bd09]
            //   418bdf               | mov                 al, byte ptr [eax + ecx]
            //   4c8d0d1e96faff       | inc                 ecx
            //   4885db               | mov                 byte ptr [edi], al
            //   750d                 | dec                 ebp

        $sequence_3 = { 488d05bb720600 488bf9 488901 8bda 488b4910 e8???????? 488b4f18 }
            // n = 7, score = 100
            //   488d05bb720600       | mov                 esi, 1
            //   488bf9               | mov                 dword ptr [esp + 0xb0], esi
            //   488901               | and                 dword ptr [ebx + 8], 0
            //   8bda                 | dec                 eax
            //   488b4910             | lea                 ecx, [0x656e8]
            //   e8????????           |                     
            //   488b4f18             | dec                 eax

        $sequence_4 = { 48ffc2 4d8bc6 488b8d30010000 e8???????? 48895c2420 4c8d8d900f0000 4c8d8528020000 }
            // n = 7, score = 100
            //   48ffc2               | dec                 eax
            //   4d8bc6               | lea                 ecx, [esp + 0x20]
            //   488b8d30010000       | dec                 eax
            //   e8????????           |                     
            //   48895c2420           | lea                 edx, [0x617d5]
            //   4c8d8d900f0000       | dec                 eax
            //   4c8d8528020000       | lea                 ecx, [esp + 0x20]

        $sequence_5 = { f20f114c0110 0fb705???????? 6689441118 8a05???????? 8844111a 8bdd 41891f }
            // n = 7, score = 100
            //   f20f114c0110         | je                  0xec
            //   0fb705????????       |                     
            //   6689441118           | dec                 eax
            //   8a05????????         |                     
            //   8844111a             | mov                 eax, dword ptr [ebx + 0x18]
            //   8bdd                 | dec                 eax
            //   41891f               | mov                 dword ptr [eax], edi

        $sequence_6 = { 498b4e08 4c8d4508 33d2 ff15???????? 488b7508 4c8d4530 488bce }
            // n = 7, score = 100
            //   498b4e08             | movdqu              xmmword ptr [ebp - 0x30], xmm0
            //   4c8d4508             | movups              xmm1, xmmword ptr [edi]
            //   33d2                 | movdqu              xmmword ptr [ebp - 0x20], xmm1
            //   ff15????????         |                     
            //   488b7508             | dec                 eax
            //   4c8d4530             | lea                 eax, [0x50c69]
            //   488bce               | dec                 esp

        $sequence_7 = { 488d1565f20500 488d4d60 e8???????? cc }
            // n = 4, score = 100
            //   488d1565f20500       | inc                 esp
            //   488d4d60             | mov                 byte ptr [ebp + 0x150], bh
            //   e8????????           |                     
            //   cc                   | inc                 esp

        $sequence_8 = { 0fb7d0 488d4c2420 81ca00000780 85c0 0f4ed0 e8???????? 488d1536f40500 }
            // n = 7, score = 100
            //   0fb7d0               | mov                 dword ptr [esi], eax
            //   488d4c2420           | dec                 eax
            //   81ca00000780         | lea                 ecx, [ebp - 0x60]
            //   85c0                 | movups              xmm0, xmmword ptr [eax]
            //   0f4ed0               | movups              xmmword ptr [esi + 0x10], xmm0
            //   e8????????           |                     
            //   488d1536f40500       | dec                 eax

        $sequence_9 = { e9???????? 4489742440 bbf4010000 448bc3 33d2 488d8d60020000 e8???????? }
            // n = 7, score = 100
            //   e9????????           |                     
            //   4489742440           | lea                 ecx, [ebp - 0x50]
            //   bbf4010000           | dec                 eax
            //   448bc3               | mov                 dword ptr [ebp + 0x190], eax
            //   33d2                 | dec                 eax
            //   488d8d60020000       | mov                 edi, dword ptr [ebp + 0x198]
            //   e8????????           |                     

    condition:
        7 of them and filesize < 1552384
}
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