SYMBOLCOMMON_NAMEaka. SYNONYMS
elf.bashlite (Back to overview)

Bashlite

aka: gayfgt, Gafgyt, qbot, torlus, lizkebab
URLhaus        

There is no description at this point.

References
2020-07-06360 netlabYa Liu
@online{liu:20200706:gafgyt:9fb2ccc, author = {Ya Liu}, title = {{The Gafgyt variant vbot seen in its 31 campaigns}}, date = {2020-07-06}, organization = {360 netlab}, url = {https://blog.netlab.360.com/the-gafgyt-variant-vbot-and-its-31-campaigns/}, language = {English}, urldate = {2020-07-06} } The Gafgyt variant vbot seen in its 31 campaigns
Bashlite
2020-05-14paloalto Networks Unit 42Ruchna Nigam
@online{nigam:20200514:mirai:65d9d83, author = {Ruchna Nigam}, title = {{Mirai and Hoaxcalls Botnets Target Legacy Symantec Web Gateways}}, date = {2020-05-14}, organization = {paloalto Networks Unit 42}, url = {https://unit42.paloaltonetworks.com/hoaxcalls-mirai-target-legacy-symantec-web-gateways/}, language = {English}, urldate = {2020-05-18} } Mirai and Hoaxcalls Botnets Target Legacy Symantec Web Gateways
Bashlite Mirai
2016-09-21Brian Krebs
@online{krebs:20160921:krebsonsecurity:259c3cd, author = {Brian Krebs}, title = {{KrebsOnSecurity Hit With Record DDoS}}, date = {2016-09-21}, url = {https://krebsonsecurity.com/2016/09/krebsonsecurity-hit-with-record-ddos/}, language = {English}, urldate = {2019-12-18} } KrebsOnSecurity Hit With Record DDoS
Bashlite
2014-11-13Trend MicroRhena Inocencio
@online{inocencio:20141113:bashlite:647137b, author = {Rhena Inocencio}, title = {{BASHLITE Affects Devices Running on BusyBox}}, date = {2014-11-13}, organization = {Trend Micro}, url = {http://blog.trendmicro.com/trendlabs-security-intelligence/bashlite-affects-devices-running-on-busybox/}, language = {English}, urldate = {2019-07-10} } BASHLITE Affects Devices Running on BusyBox
Bashlite
Yara Rules
[TLP:WHITE] elf_bashlite_auto (20200529 | autogenerated rule brought to you by yara-signator)
rule elf_bashlite_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-05-30"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.4.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/elf.bashlite"
        malpedia_rule_date = "20200529"
        malpedia_hash = "92c362319514e5a6da26204961446caa3a8b32a8"
        malpedia_version = "20200529"
        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 / approach 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???????? 89c2 89d0 c1e81f 01d0 }
            // n = 5, score = 300
            //   e8????????           |                     
            //   89c2                 | dec                 eax
            //   89d0                 | cmp                 edx, eax
            //   c1e81f               | jne                 0x14ae
            //   01d0                 | dec                 eax

        $sequence_1 = { c785ecefffff00000000 8b85ecefffff c9 c3 55 }
            // n = 5, score = 300
            //   c785ecefffff00000000     | mov    dword ptr [esp], 0
            //   8b85ecefffff         | mov                 dword ptr [esp + 4], 0
            //   c9                   | mov                 dword ptr [esp], edx
            //   c3                   | mov                 dword ptr [esp], 1
            //   55                   | mov                 dword ptr [esp + 4], 0

        $sequence_2 = { f7d0 21d0 3345fc c9 c3 }
            // n = 5, score = 300
            //   f7d0                 | mov                 dword ptr [ebp - 0xe4], eax
            //   21d0                 | mov                 eax, dword ptr [ebp + 0xc]
            //   3345fc               | add                 eax, 4
            //   c9                   | mov                 eax, dword ptr [eax]
            //   c3                   | mov                 dword ptr [ebp - 0x94], eax

        $sequence_3 = { eb0a c785ecefffff00000000 8b85ecefffff c9 c3 }
            // n = 5, score = 300
            //   eb0a                 | mov                 dword ptr [esp + 4], 0x2c
            //   c785ecefffff00000000     | mov    dword ptr [esp], eax
            //   8b85ecefffff         | mov                 dword ptr [ebp - 0x3c], eax
            //   c9                   | cmp                 dword ptr [ebp - 0x3c], 0
            //   c3                   | je                  0x3f8

        $sequence_4 = { 89c2 89d0 c1e81f 01d0 }
            // n = 4, score = 300
            //   89c2                 | test                edx, edx
            //   89d0                 | mov                 dword ptr [esi], edi
            //   c1e81f               | je                  0x69e
            //   01d0                 | inc                 esp

        $sequence_5 = { 750c c785ecefffff01000000 eb0a c785ecefffff00000000 8b85ecefffff c9 }
            // n = 6, score = 300
            //   750c                 | je                  0xfbb
            //   c785ecefffff01000000     | cmp    ch, dl
            //   eb0a                 | je                  0xf53
            //   c785ecefffff00000000     | dec    eax
            //   8b85ecefffff         | inc                 eax
            //   c9                   | dec                 eax

        $sequence_6 = { e8???????? c70016000000 e8???????? c70016000000 83c8ff }
            // n = 5, score = 300
            //   e8????????           |                     
            //   c70016000000         | inc                 dword ptr [esp + 0x24]
            //   e8????????           |                     
            //   c70016000000         | add                 esp, 0x10
            //   83c8ff               | cmp                 dword ptr [esp + 0x24], ebx

        $sequence_7 = { eb0d e8???????? c70061000000 31d2 }
            // n = 4, score = 300
            //   eb0d                 | jle                 0xdc0
            //   e8????????           |                     
            //   c70061000000         | mov                 eax, dword ptr [ebp + 0xc]
            //   31d2                 | test                eax, eax

        $sequence_8 = { eb0a c785ecefffff00000000 8b85ecefffff c9 }
            // n = 4, score = 300
            //   eb0a                 | mov                 edx, dword ptr [ebp - 0x7c]
            //   c785ecefffff00000000     | test    eax, eax
            //   8b85ecefffff         | jne                 0x865
            //   c9                   | dec                 eax

        $sequence_9 = { e8???????? 89c2 89d0 c1e81f }
            // n = 4, score = 300
            //   e8????????           |                     
            //   89c2                 | mov                 edi, esp
            //   89d0                 | mov                 esi, 0x512c40
            //   c1e81f               | inc                 esp

    condition:
        7 of them and filesize < 274018
}
Download all Yara Rules