SYMBOLCOMMON_NAMEaka. SYNONYMS
win.cherry_picker (Back to overview)

CherryPicker POS

aka: cherrypickerpos, cherrypicker, cherry_picker

There is no description at this point.

References
2015-11-17SpiderLabs BlogEric Merritt
@online{merritt:20151117:new:c3bb63a, author = {Eric Merritt}, title = {{New Memory Scraping Technique in Cherry Picker PoS Malware}}, date = {2015-11-17}, organization = {SpiderLabs Blog}, url = {https://www.trustwave.com/Resources/SpiderLabs-Blog/New-Memory-Scraping-Technique-in-Cherry-Picker-PoS-Malware/}, language = {English}, urldate = {2020-01-13} } New Memory Scraping Technique in Cherry Picker PoS Malware
CherryPicker POS
2015-11-16SpiderLabs BlogEric Merritt
@online{merritt:20151116:shining:5fb21ce, author = {Eric Merritt}, title = {{Shining the Spotlight on Cherry Picker PoS Malware}}, date = {2015-11-16}, organization = {SpiderLabs Blog}, url = {https://www.trustwave.com/Resources/SpiderLabs-Blog/Shining-the-Spotlight-on-Cherry-Picker-PoS-Malware/}, language = {English}, urldate = {2020-01-08} } Shining the Spotlight on Cherry Picker PoS Malware
CherryPicker POS
Yara Rules
[TLP:WHITE] win_cherry_picker_auto (20220808 | Detects win.cherry_picker.)
rule win_cherry_picker_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        version = "1"
        description = "Detects win.cherry_picker."
        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.cherry_picker"
        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 = { ffd6 68???????? 6800010000 68???????? 68???????? }
            // n = 5, score = 300
            //   ffd6                 | call                esi
            //   68????????           |                     
            //   6800010000           | push                0x100
            //   68????????           |                     
            //   68????????           |                     

        $sequence_1 = { 57 6aff 50 ffd3 6a00 6a00 6a03 }
            // n = 7, score = 300
            //   57                   | push                edi
            //   6aff                 | push                -1
            //   50                   | push                eax
            //   ffd3                 | call                ebx
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   6a03                 | push                3

        $sequence_2 = { 6a00 6a00 6a04 6a00 6a00 6800000040 68???????? }
            // n = 7, score = 300
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   6a04                 | push                4
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   6800000040           | push                0x40000000
            //   68????????           |                     

        $sequence_3 = { 80fa3b 7503 83c9ff 8817 47 }
            // n = 5, score = 300
            //   80fa3b               | cmp                 dl, 0x3b
            //   7503                 | jne                 5
            //   83c9ff               | or                  ecx, 0xffffffff
            //   8817                 | mov                 byte ptr [edi], dl
            //   47                   | inc                 edi

        $sequence_4 = { 90 8bf0 0fbec9 81e6ff000000 33f1 8a4a01 }
            // n = 6, score = 300
            //   90                   | nop                 
            //   8bf0                 | mov                 esi, eax
            //   0fbec9               | movsx               ecx, cl
            //   81e6ff000000         | and                 esi, 0xff
            //   33f1                 | xor                 esi, ecx
            //   8a4a01               | mov                 cl, byte ptr [edx + 1]

        $sequence_5 = { ffd6 68???????? 6800010000 68???????? }
            // n = 4, score = 300
            //   ffd6                 | call                esi
            //   68????????           |                     
            //   6800010000           | push                0x100
            //   68????????           |                     

        $sequence_6 = { 52 8d442428 50 ff542420 }
            // n = 4, score = 300
            //   52                   | push                edx
            //   8d442428             | lea                 eax, [esp + 0x28]
            //   50                   | push                eax
            //   ff542420             | call                dword ptr [esp + 0x20]

        $sequence_7 = { 68???????? 56 89442420 ffd3 68???????? 56 }
            // n = 6, score = 300
            //   68????????           |                     
            //   56                   | push                esi
            //   89442420             | mov                 dword ptr [esp + 0x20], eax
            //   ffd3                 | call                ebx
            //   68????????           |                     
            //   56                   | push                esi

        $sequence_8 = { 68???????? ffd6 68???????? 6800010000 68???????? 68???????? 68???????? }
            // n = 7, score = 300
            //   68????????           |                     
            //   ffd6                 | call                esi
            //   68????????           |                     
            //   6800010000           | push                0x100
            //   68????????           |                     
            //   68????????           |                     
            //   68????????           |                     

        $sequence_9 = { a3???????? a3???????? 66a3???????? b802020202 }
            // n = 4, score = 300
            //   a3????????           |                     
            //   a3????????           |                     
            //   66a3????????         |                     
            //   b802020202           | mov                 eax, 0x2020202

    condition:
        7 of them and filesize < 712704
}
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