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
2017-08-25Kaspersky LabsJuan Andrés Guerrero-Saade, Costin Raiu
@techreport{guerrerosaade:20170825:walking:040671b, author = {Juan Andrés Guerrero-Saade and Costin Raiu}, title = {{Walking in your Enemy's Shadow: When Fourth-Party Collection becomes Attribution Hell}}, date = {2017-08-25}, institution = {Kaspersky Labs}, url = {https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2018/03/07170728/Guerrero-Saade-Raiu-VB2017.pdf}, language = {English}, urldate = {2022-10-06} } Walking in your Enemy's Shadow: When Fourth-Party Collection becomes Attribution Hell
NetTraveler RCS WannaCryptor Dancing Salome
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 APT21
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 (20230715 | Detects win.nettraveler.)
rule win_nettraveler_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        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 = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { c745f400040000 50 8d85dcf7ffff 50 }
            // n = 4, score = 100
            //   c745f400040000       | mov                 dword ptr [ebp - 0xc], 0x400
            //   50                   | push                eax
            //   8d85dcf7ffff         | lea                 eax, [ebp - 0x824]
            //   50                   | push                eax

        $sequence_1 = { ff75f4 ff75fc 50 ff15???????? ff75f0 ff15???????? 8d85b4feffff }
            // n = 7, score = 100
            //   ff75f4               | push                dword ptr [ebp - 0xc]
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   50                   | push                eax
            //   ff15????????         |                     
            //   ff75f0               | push                dword ptr [ebp - 0x10]
            //   ff15????????         |                     
            //   8d85b4feffff         | lea                 eax, [ebp - 0x14c]

        $sequence_2 = { e8???????? 83c41c ff750c ff7508 56 e8???????? }
            // n = 6, score = 100
            //   e8????????           |                     
            //   83c41c               | add                 esp, 0x1c
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   ff7508               | push                dword ptr [ebp + 8]
            //   56                   | push                esi
            //   e8????????           |                     

        $sequence_3 = { ff15???????? 8b1d???????? 50 ffd3 68???????? 68???????? 8d85ccfeffff }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   8b1d????????         |                     
            //   50                   | push                eax
            //   ffd3                 | call                ebx
            //   68????????           |                     
            //   68????????           |                     
            //   8d85ccfeffff         | lea                 eax, [ebp - 0x134]

        $sequence_4 = { a801 745a 8ac1 c645cd3a 0441 c645ce5c 8845cc }
            // n = 7, score = 100
            //   a801                 | test                al, 1
            //   745a                 | je                  0x5c
            //   8ac1                 | mov                 al, cl
            //   c645cd3a             | mov                 byte ptr [ebp - 0x33], 0x3a
            //   0441                 | add                 al, 0x41
            //   c645ce5c             | mov                 byte ptr [ebp - 0x32], 0x5c
            //   8845cc               | mov                 byte ptr [ebp - 0x34], al

        $sequence_5 = { 81e1ff000000 8933 8b32 c1e608 0bf1 }
            // n = 5, score = 100
            //   81e1ff000000         | and                 ecx, 0xff
            //   8933                 | mov                 dword ptr [ebx], esi
            //   8b32                 | mov                 esi, dword ptr [edx]
            //   c1e608               | shl                 esi, 8
            //   0bf1                 | or                  esi, ecx

        $sequence_6 = { 50 ff75fc ff750c ff7508 e8???????? 83c428 395dfc }
            // n = 7, score = 100
            //   50                   | push                eax
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     
            //   83c428               | add                 esp, 0x28
            //   395dfc               | cmp                 dword ptr [ebp - 4], ebx

        $sequence_7 = { ff75e4 ff15???????? 8d850cf2ffff 56 50 e8???????? }
            // n = 6, score = 100
            //   ff75e4               | push                dword ptr [ebp - 0x1c]
            //   ff15????????         |                     
            //   8d850cf2ffff         | lea                 eax, [ebp - 0xdf4]
            //   56                   | push                esi
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_8 = { 80e201 88140f 41 3bce 7ce6 eb78 8d0c40 }
            // n = 7, score = 100
            //   80e201               | and                 dl, 1
            //   88140f               | mov                 byte ptr [edi + ecx], dl
            //   41                   | inc                 ecx
            //   3bce                 | cmp                 ecx, esi
            //   7ce6                 | jl                  0xffffffe8
            //   eb78                 | jmp                 0x7a
            //   8d0c40               | lea                 ecx, [eax + eax*2]

        $sequence_9 = { 50 ff15???????? 6810270000 ff15???????? 6a00 ff15???????? 5f }
            // n = 7, score = 100
            //   50                   | push                eax
            //   ff15????????         |                     
            //   6810270000           | push                0x2710
            //   ff15????????         |                     
            //   6a00                 | push                0
            //   ff15????????         |                     
            //   5f                   | pop                 edi

    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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