rule win_netwire_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2018-11-23"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator 0.1a"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.netwire"
        malpedia_version = "20180607"
        malpedia_license = "CC BY-NC-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 will be published in the near future 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 = { 88460c 8b4314 c1e808 88460d }
            // n = 4, score = 6000
            //   88460c               | mov                 byte ptr [esi + 0xc], al
            //   8b4314               | mov                 eax, dword ptr [ebx + 0x14]
            //   c1e808               | shr                 eax, 8
            //   88460d               | mov                 byte ptr [esi + 0xd], al

        $sequence_1 = { 88460b 8b4314 88460c 8b4314 }
            // n = 4, score = 6000
            //   88460b               | mov                 byte ptr [esi + 0xb], al
            //   8b4314               | mov                 eax, dword ptr [ebx + 0x14]
            //   88460c               | mov                 byte ptr [esi + 0xc], al
            //   8b4314               | mov                 eax, dword ptr [ebx + 0x14]

        $sequence_2 = { 88460d 0fb74316 88460e 0fb64317 }
            // n = 4, score = 6000
            //   88460d               | mov                 byte ptr [esi + 0xd], al
            //   0fb74316             | movzx               eax, word ptr [ebx + 0x16]
            //   88460e               | mov                 byte ptr [esi + 0xe], al
            //   0fb64317             | movzx               eax, byte ptr [ebx + 0x17]

        $sequence_3 = { c744240c00000000 c744240800000000 c744240400000000 c7042410000000 }
            // n = 4, score = 6000
            //   c744240c00000000     | mov                 dword ptr [esp + 0xc], 0
            //   c744240800000000     | mov                 dword ptr [esp + 8], 0
            //   c744240400000000     | mov                 dword ptr [esp + 4], 0
            //   c7042410000000       | mov                 dword ptr [esp], 0x10

        $sequence_4 = { 8b911c020000 89442410 89542414 0fb68128020000 }
            // n = 4, score = 6000
            //   8b911c020000         | mov                 edx, dword ptr [ecx + 0x21c]
            //   89442410             | mov                 dword ptr [esp + 0x10], eax
            //   89542414             | mov                 dword ptr [esp + 0x14], edx
            //   0fb68128020000       | movzx               eax, byte ptr [ecx + 0x228]

        $sequence_5 = { 0fb74316 88460e 0fb64317 88460f }
            // n = 4, score = 6000
            //   0fb74316             | movzx               eax, word ptr [ebx + 0x16]
            //   88460e               | mov                 byte ptr [esi + 0xe], al
            //   0fb64317             | movzx               eax, byte ptr [ebx + 0x17]
            //   88460f               | mov                 byte ptr [esi + 0xf], al

        $sequence_6 = { 7412 83fa03 7421 4a }
            // n = 4, score = 6000
            //   7412                 | je                  0x40da44
            //   83fa03               | cmp                 edx, 3
            //   7421                 | je                  0x40da58
            //   4a                   | dec                 edx

        $sequence_7 = { 884602 0fb6430b 884603 8b430c }
            // n = 4, score = 6000
            //   884602               | mov                 byte ptr [esi + 2], al
            //   0fb6430b             | movzx               eax, byte ptr [ebx + 0xb]
            //   884603               | mov                 byte ptr [esi + 3], al
            //   8b430c               | mov                 eax, dword ptr [ebx + 0xc]

        $sequence_8 = { c7430c00000000 c7431000000000 c7431400000000 c70300000000 }
            // n = 4, score = 6000
            //   c7430c00000000       | mov                 dword ptr [ebx + 0xc], 0
            //   c7431000000000       | mov                 dword ptr [ebx + 0x10], 0
            //   c7431400000000       | mov                 dword ptr [ebx + 0x14], 0
            //   c70300000000         | mov                 dword ptr [ebx], 0

        $sequence_9 = { 8974240c c744240801000000 c744240407000000 891c24 }
            // n = 4, score = 6000
            //   8974240c             | mov                 dword ptr [esp + 0xc], esi
            //   c744240801000000     | mov                 dword ptr [esp + 8], 1
            //   c744240407000000     | mov                 dword ptr [esp + 4], 7
            //   891c24               | mov                 dword ptr [esp], ebx

    condition:
        7 of them
}

rule win_netwire_w0 {
	meta:
		description = "NetWiredRC"
		author = "Jean-Philippe Teissier / @Jipe_"
		date = "2014-12-23"
		filetype = "memory"
		version = "1.1" 
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/netwiredRC.yar"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
        
	strings:
		$mutex = "LmddnIkX"

		$str1 = "%s.Identifier"
		$str2 = "%d:%I64u:%s%s;"
		$str3 = "%s%.2d-%.2d-%.4d"
		$str4 = "[%s] - [%.2d/%.2d/%d %.2d:%.2d:%.2d]"
		$str5 = "%.2d/%.2d/%d %.2d:%.2d:%.2d"
		
		$klg1 = "[Backspace]"
		$klg2 = "[Enter]"
		$klg3 = "[Tab]"
		$klg4 = "[Arrow Left]"
		$klg5 = "[Arrow Up]"
		$klg6 = "[Arrow Right]"
		$klg7 = "[Arrow Down]"
		$klg8 = "[Home]"
		$klg9 = "[Page Up]"
		$klg10 = "[Page Down]"
		$klg11 = "[End]"
		$klg12 = "[Break]"
		$klg13 = "[Delete]"
		$klg14 = "[Insert]"
		$klg15 = "[Print Screen]"
		$klg16 = "[Scroll Lock]"
		$klg17 = "[Caps Lock]"
		$klg18 = "[Alt]"
		$klg19 = "[Esc]"
		$klg20 = "[Ctrl+%c]"

	condition: 
		$mutex or (1 of ($str*) and 1 of ($klg*))
}

/*
    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_netwire_w1 {
	meta:
		author = " Kevin Breen <kevin@techanarchy.net>"
		date = "2014/04"
		ref = "http://malwareconfig.com/stats/NetWire"
		maltype = "Remote Access Trojan"
		filetype = "exe"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/netwiredRC.yar"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
		
    strings:
        $string1 = "[Scroll Lock]"
        $string2 = "[Shift Lock]"
        $string3 = "200 OK"
        $string4 = "%s.Identifier"
        $string5 = "sqlite3_column_text"
        $string6 = "[%s] - [%.2d/%.2d/%d %.2d:%.2d:%.2d]"
    condition:
        all of them
}