SYMBOLCOMMON_NAMEaka. SYNONYMS
win.nettraveler (Back to overview)

NetTraveler

aka: TravNet

Actor(s): NetTraveler


There is no description at this point.

References
2020-11-27CYBER GEEKS All Things InfosecCyberMasterV
@online{cybermasterv:20201127:dissecting:23d6915, author = {CyberMasterV}, title = {{Dissecting APT21 samples using a step-by-step approach}}, date = {2020-11-27}, organization = {CYBER GEEKS All Things Infosec}, url = {https://cybergeeks.tech/dissecting-apt21-samples-using-a-step-by-step-approach/}, language = {English}, urldate = {2020-12-08} } Dissecting APT21 samples using a step-by-step approach
NetTraveler
2016-07-07ProofpointAxel F
@online{f:20160707:nettraveler:a613df3, author = {Axel F}, title = {{NetTraveler APT Targets Russian, European Interests}}, date = {2016-07-07}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/threat-insight/post/nettraveler-apt-targets-russian-european-interests}, language = {English}, urldate = {2019-12-20} } NetTraveler APT Targets Russian, European Interests
NetTraveler NetTraveler
2015-02-06CrowdStrikeCrowdStrike
@techreport{crowdstrike:20150206:crowdstrike:fbcc37f, author = {CrowdStrike}, title = {{CrowdStrike Global Threat Intel Report 2014}}, date = {2015-02-06}, institution = {CrowdStrike}, url = {https://web.archive.org/web/20200509171721/https://raw.githubusercontent.com/fdiskyou/threat-INTel/master/2015/GlobalThreatIntelReport.pdf}, language = {English}, urldate = {2020-05-11} } CrowdStrike Global Threat Intel Report 2014
BlackPOS CryptoLocker Derusbi Elise Enfal EvilGrab Gameover P2P HttpBrowser Medusa Mirage Naikon NetTraveler pirpi PlugX Poison Ivy Sakula RAT Sinowal sykipot taidoor
Yara Rules
[TLP:WHITE] win_nettraveler_auto (20210616 | Detects win.nettraveler.)
rule win_nettraveler_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-06-10"
        version = "1"
        description = "Detects win.nettraveler."
        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.nettraveler"
        malpedia_rule_date = "20210604"
        malpedia_hash = "be09d5d71e77373c0f538068be31a2ad4c69cfbd"
        malpedia_version = "20210616"
        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 = { 56 57 8d85f4fdffff 6804010000 50 ff15???????? 8b35???????? }
            // n = 7, score = 100
            //   56                   | push                esi
            //   57                   | push                edi
            //   8d85f4fdffff         | lea                 eax, dword ptr [ebp - 0x20c]
            //   6804010000           | push                0x104
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8b35????????         |                     

        $sequence_1 = { ff75fc e8???????? 83c40c 8945f8 eb0d 53 68???????? }
            // n = 7, score = 100
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   eb0d                 | jmp                 0xf
            //   53                   | push                ebx
            //   68????????           |                     

        $sequence_2 = { 50 ffd6 8d45f8 50 8d85ccfeffff 50 }
            // n = 6, score = 100
            //   50                   | push                eax
            //   ffd6                 | call                esi
            //   8d45f8               | lea                 eax, dword ptr [ebp - 8]
            //   50                   | push                eax
            //   8d85ccfeffff         | lea                 eax, dword ptr [ebp - 0x134]
            //   50                   | push                eax

        $sequence_3 = { 03f7 ff4d0c 75ba 66837d1801 7558 837dfc00 7e52 }
            // n = 7, score = 100
            //   03f7                 | add                 esi, edi
            //   ff4d0c               | dec                 dword ptr [ebp + 0xc]
            //   75ba                 | jne                 0xffffffbc
            //   66837d1801           | cmp                 word ptr [ebp + 0x18], 1
            //   7558                 | jne                 0x5a
            //   837dfc00             | cmp                 dword ptr [ebp - 4], 0
            //   7e52                 | jle                 0x54

        $sequence_4 = { ff742414 ffd3 59 85c0 59 752c 55 }
            // n = 7, score = 100
            //   ff742414             | push                dword ptr [esp + 0x14]
            //   ffd3                 | call                ebx
            //   59                   | pop                 ecx
            //   85c0                 | test                eax, eax
            //   59                   | pop                 ecx
            //   752c                 | jne                 0x2e
            //   55                   | push                ebp

        $sequence_5 = { 7522 e8???????? 393d???????? 7410 e8???????? 85c0 7507 }
            // n = 7, score = 100
            //   7522                 | jne                 0x24
            //   e8????????           |                     
            //   393d????????         |                     
            //   7410                 | je                  0x12
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   7507                 | jne                 9

        $sequence_6 = { 8d45b8 6a10 50 68???????? e8???????? 83c418 ff75f4 }
            // n = 7, score = 100
            //   8d45b8               | lea                 eax, dword ptr [ebp - 0x48]
            //   6a10                 | push                0x10
            //   50                   | push                eax
            //   68????????           |                     
            //   e8????????           |                     
            //   83c418               | add                 esp, 0x18
            //   ff75f4               | push                dword ptr [ebp - 0xc]

        $sequence_7 = { 68???????? 57 ffd6 5f 5e 5b c3 }
            // n = 7, score = 100
            //   68????????           |                     
            //   57                   | push                edi
            //   ffd6                 | call                esi
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx
            //   c3                   | ret                 

        $sequence_8 = { 3bdf 7d02 8bfb 8b4508 57 ff7514 }
            // n = 6, score = 100
            //   3bdf                 | cmp                 ebx, edi
            //   7d02                 | jge                 4
            //   8bfb                 | mov                 edi, ebx
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   57                   | push                edi
            //   ff7514               | push                dword ptr [ebp + 0x14]

        $sequence_9 = { 8945f8 0f8223ffffff eb28 8d858cf7ffff 50 ff750c }
            // n = 6, score = 100
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   0f8223ffffff         | jb                  0xffffff29
            //   eb28                 | jmp                 0x2a
            //   8d858cf7ffff         | lea                 eax, dword ptr [ebp - 0x874]
            //   50                   | push                eax
            //   ff750c               | push                dword ptr [ebp + 0xc]

    condition:
        7 of them and filesize < 106496
}
[TLP:WHITE] win_nettraveler_w0   (20170521 | Identifiers for NetTraveler DLL)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/

import "pe"

rule win_nettraveler_w0 {
    meta:
        description = "Identifiers for NetTraveler DLL"
        author = "Katie Kleemola"
        last_updated = "2014-05-20"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.nettraveler"
        malpedia_version = "20170521"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    strings:
        //network strings
        $n1 = "?action=updated&hostid="
        $n2 = "travlerbackinfo"
        $n3 = "?action=getcmd&hostid="
        $n4 = "%s?action=gotcmd&hostid="
        $n5 = "%s?hostid=%s&hostname=%s&hostip=%s&filename=%s&filestart=%u&filetext="

        //debugging strings
        $d1 = "\x00Method1 Fail!!!!!\x00"
        $d2 = "\x00Method3 Fail!!!!!\x00"
        $d3 = "\x00method currect:\x00"
        $d4 = /\x00\x00[\w\-]+ is Running!\x00\x00/
        $d5 = "\x00OtherTwo\x00"

    condition:
        any of them
}
[TLP:WHITE] win_nettraveler_w1   (20170521 | Identifiers for netpass variant)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/

rule win_nettraveler_w1 {
    meta:
        description = "Identifiers for netpass variant"
        author = "Katie Kleemola"
        last_updated = "2014-05-29"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.nettraveler"
        malpedia_version = "20170521"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    strings:
        $exif1 = "Device Protect ApplicatioN" wide
        $exif2 = "beep.sys" wide //embedded exe name
        $exif3 = "BEEP Driver" wide //embedded exe description

        $string1 = "\x00NetPass Update\x00"
        $string2 = "\x00%s:DOWNLOAD\x00"
        $string3 = "\x00%s:UPDATE\x00"
        $string4 = "\x00%s:uNINSTALL\x00"

    condition:
        all of ($exif*) or any of ($string*)
}
[TLP:WHITE] win_nettraveler_w2   (20170521 | Export names for dll component)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/

rule win_nettraveler_w2 {
	meta:
		description = "Export names for dll component"
		author = "Katie Kleemola"
		last_updated = "2014-05-20"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.nettraveler"
        malpedia_version = "20170521"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
	
	strings:
		//dll component exports
		$d1 = "?InjectDll@@YAHPAUHWND__@@K@Z"
		$d2 = "?UnmapDll@@YAHXZ"
		$d3 = "?g_bSubclassed@@3HA"
		
	condition:
		any of them
}
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