SYMBOLCOMMON_NAMEaka. SYNONYMS
win.powersniff (Back to overview)

Powersniff

aka: PUNCHBUGGY

A malware of the gozi group, developed on the base of isfb. It uses Office Macros and PowerShell in documents distributed in e-mail messages.

References
2019-07-23GigamonKristina Savelesky, Ed Miles, Justin Warner
@online{savelesky:20190723:abadbabe:061c7a8, author = {Kristina Savelesky and Ed Miles and Justin Warner}, title = {{ABADBABE 8BADF00D: Discovering BADHATCH and a Detailed Look at FIN8’s Tooling}}, date = {2019-07-23}, organization = {Gigamon}, url = {https://atr-blog.gigamon.com/2019/07/23/abadbabe-8badf00d-discovering-badhatch-and-a-detailed-look-at-fin8s-tooling/}, language = {English}, urldate = {2020-02-09} } ABADBABE 8BADF00D: Discovering BADHATCH and a Detailed Look at FIN8’s Tooling
PoSlurp Powersniff
2017-05-29Lokalhost.plMaciej Kotowicz
@online{kotowicz:20170529:gozi:96e962d, author = {Maciej Kotowicz}, title = {{Gozi Tree}}, date = {2017-05-29}, organization = {Lokalhost.pl}, url = {https://lokalhost.pl/gozi_tree.txt}, language = {English}, urldate = {2020-01-08} } Gozi Tree
DreamBot Gozi ISFB Powersniff
2017-03-14FireEyeFireEye
@online{fireeye:20170314:mtrend:0ea7d30, author = {FireEye}, title = {{M-Trend 2017: A View From the Front Lines}}, date = {2017-03-14}, organization = {FireEye}, url = {https://content.fireeye.com/m-trends/rpt-m-trends-2017}, language = {English}, urldate = {2020-06-03} } M-Trend 2017: A View From the Front Lines
DistTrack Powersniff FIN8
Yara Rules
[TLP:WHITE] win_powersniff_auto (20201014 | autogenerated rule brought to you by yara-signator)
rule win_powersniff_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.powersniff"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        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 = { ff75f4 56 ff35???????? ff15???????? 8bf0 }
            // n = 5, score = 100
            //   ff75f4               | push                dword ptr [ebp - 0xc]
            //   56                   | push                esi
            //   ff35????????         |                     
            //   ff15????????         |                     
            //   8bf0                 | mov                 esi, eax

        $sequence_1 = { 56 8b35???????? 57 8d85d8fdffff 50 33db }
            // n = 6, score = 100
            //   56                   | push                esi
            //   8b35????????         |                     
            //   57                   | push                edi
            //   8d85d8fdffff         | lea                 eax, [ebp - 0x228]
            //   50                   | push                eax
            //   33db                 | xor                 ebx, ebx

        $sequence_2 = { ff7610 eb17 397e08 750a }
            // n = 4, score = 100
            //   ff7610               | push                dword ptr [esi + 0x10]
            //   eb17                 | jmp                 0x19
            //   397e08               | cmp                 dword ptr [esi + 8], edi
            //   750a                 | jne                 0xc

        $sequence_3 = { 85c0 7523 56 6800404084 53 53 }
            // n = 6, score = 100
            //   85c0                 | test                eax, eax
            //   7523                 | jne                 0x25
            //   56                   | push                esi
            //   6800404084           | push                0x84404000
            //   53                   | push                ebx
            //   53                   | push                ebx

        $sequence_4 = { ab 8b4508 8945e8 8d45e8 }
            // n = 4, score = 100
            //   ab                   | stosd               dword ptr es:[edi], eax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8945e8               | mov                 dword ptr [ebp - 0x18], eax
            //   8d45e8               | lea                 eax, [ebp - 0x18]

        $sequence_5 = { 33148d90800010 0fb648f4 8b0c8d90600010 33148d90840010 8b48f8 8950f4 8bd9 }
            // n = 7, score = 100
            //   33148d90800010       | xor                 edx, dword ptr [ecx*4 + 0x10008090]
            //   0fb648f4             | movzx               ecx, byte ptr [eax - 0xc]
            //   8b0c8d90600010       | mov                 ecx, dword ptr [ecx*4 + 0x10006090]
            //   33148d90840010       | xor                 edx, dword ptr [ecx*4 + 0x10008490]
            //   8b48f8               | mov                 ecx, dword ptr [eax - 8]
            //   8950f4               | mov                 dword ptr [eax - 0xc], edx
            //   8bd9                 | mov                 ebx, ecx

        $sequence_6 = { c1ea08 0fb6db 330c9d90600010 0fb6d2 c1e108 }
            // n = 5, score = 100
            //   c1ea08               | shr                 edx, 8
            //   0fb6db               | movzx               ebx, bl
            //   330c9d90600010       | xor                 ecx, dword ptr [ebx*4 + 0x10006090]
            //   0fb6d2               | movzx               edx, dl
            //   c1e108               | shl                 ecx, 8

        $sequence_7 = { ff75e8 56 ff750c ff75f8 ff15???????? 85c0 }
            // n = 6, score = 100
            //   ff75e8               | push                dword ptr [ebp - 0x18]
            //   56                   | push                esi
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax

        $sequence_8 = { ff15???????? eb47 8b45e8 6aff }
            // n = 4, score = 100
            //   ff15????????         |                     
            //   eb47                 | jmp                 0x49
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]
            //   6aff                 | push                -1

        $sequence_9 = { ffd7 85c0 7e2c 8a8475f0fdffff }
            // n = 4, score = 100
            //   ffd7                 | call                edi
            //   85c0                 | test                eax, eax
            //   7e2c                 | jle                 0x2e
            //   8a8475f0fdffff       | mov                 al, byte ptr [ebp + esi*2 - 0x210]

    condition:
        7 of them and filesize < 90112
}
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