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Trojan.Siggen18.39576

Added to the Dr.Web virus database: 2022-08-28

Virus description added:

Technical Information

To ensure autorun and distribution
Sets the following service settings
  • [<HKLM>\System\CurrentControlSet\Services\alsjzxcr] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\alsjzxcr] 'ImagePath' = '%WINDIR%\SysWOW64\alsjzxcr\nvnxmxfa.exe /d"<Full path to file>"'
  • [<HKLM>\SYSTEM\CurrentControlSet\services\alsjzxcr] 'ImagePath' = '%WINDIR%\SysWOW64\alsjzxcr\nvnxmxfa.exe'
Creates the following services
  • 'alsjzxcr' %WINDIR%\SysWOW64\alsjzxcr\nvnxmxfa.exe /d"<Full path to file>"
  • 'alsjzxcr' %WINDIR%\SysWOW64\alsjzxcr\nvnxmxfa.exe
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion with following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\SysWOW64\alsjzxcr' = '00000000'
Executes the following
  • '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul
Injects code into
the following system processes:
  • %WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
  • %TEMP%\nvnxmxfa.exe
  • %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
  • from %TEMP%\nvnxmxfa.exe to %WINDIR%\syswow64\alsjzxcr\nvnxmxfa.exe
Deletes itself.
Network activity
Connects to
  • 'mi##########m.mail.protection.outlook.com':25
  • 'go###e.co.uk':443
  • 'ASPMX.L.GOOGLE.COM':25
  • 'in#########p.us-east-1.amazonaws.com':25
  • 'google.com':443
  • 'et#########.mail.protection.outlook.com':25
  • 'mx#.#angia.biz':25
  • 'mx#######001.gslb.pphosted.com':25
  • 'mx######91d01.pphosted.com':25
  • 'ed###########-se.mail.protection.outlook.com':25
  • 'ap#########.mail.protection.outlook.com':25
  • 'va##########se.mail.protection.outlook.com':25
  • 'ma######er-ng-3.sunet.se':25
  • 'ma######ection01.atea.se':25
  • 'fa######.##il.protection.outlook.com':25
  • 'mx#.####y.mail2world.com':25
  • 'se.##2.mx25.net':25
  • 'ud##########-se.mail.protection.outlook.com':25
  • 'bi####.###l.protection.outlook.com':25
  • 'sm#####.#to-hy.se.stejtech.net':25
  • 'mx##.##il.icloud.com':25
  • 'ma##.##ometrisks.com':25
  • 'mx#######801.gslb.pphosted.com':25
  • 'nd#####.com.1.arsmtp.com':25
  • 'mx#.###ispamengine.com':25
  • 'Ko########.mx1.staysecuregroup.com':25
  • 'fa###ool.xyz':10060
  • 'mx#.#ailgun.org':25
  • 'sv####lfheim.top':443
  • '80.##.75.254':482
  • 'mx.####o.locaweb.com.br':25
  • 'mx#.#aver.com':25
  • 'dt########.mail.protection.outlook.com':25
  • 'In#########.mail.protection.outlook.com':25
  • 'mx.##wered.name':25
  • 'ur########.mail.protection.outlook.com':25
  • 'ln###.pinehost.net':25
  • 'be##########ph.mail.protection.outlook.com':25
  • 'av####.sys.voztele.net':25
  • 'ma##.###sultronic.com.py':25
  • '17#.#13.115.153':426
  • '17#.#13.115.154':426
  • '17#.#13.115.155':426
  • '80.#6.75.4':426
  • '17#.#13.115.156':426
  • '17#.#13.115.157':426
  • 'google.com':80
  • 'ma##.fegama.org':25
  • '44#####mprovement.com':80
  • 'ma##.#epamar.com':25
  • 'mx##.#lackberry.com':25
  • 'po##hub.com':443
  • 'r-####6.korea.com':25
TCP
HTTP GET requests
  • http://www.google.com/
HTTP POST requests
  • http://44#####mprovement.com/options.php
Other
  • 'sv####lfheim.top':443
  • 'fa###ool.xyz':10060
  • 'bi####.###l.protection.outlook.com':25
  • 'fa######.##il.protection.outlook.com':25
  • 'ma######er-ng-3.sunet.se':25
  • 'va##########se.mail.protection.outlook.com':25
  • 'ap#########.mail.protection.outlook.com':25
  • 'ed###########-se.mail.protection.outlook.com':25
  • 'mx#.#angia.biz':25
  • 'google.com':443
  • 'in#########p.us-east-1.amazonaws.com':25
  • 'ASPMX.L.GOOGLE.COM':25
  • 'go###e.co.uk':443
  • 'mx#.###ispamengine.com':25
  • 'po##hub.com':443
  • 'se.##2.mx25.net':25
  • 'mx#.#ailgun.org':25
  • 'ma##.#epamar.com':25
  • 'av####.sys.voztele.net':25
  • 'ma##.fegama.org':25
  • '17#.#13.115.153':426
  • '17#.#13.115.157':426
  • '17#.#13.115.155':426
  • '17#.#13.115.154':426
  • '17#.#13.115.156':426
  • '80.#6.75.4':426
  • 'ma##.###sultronic.com.py':25
  • 'mx.##wered.name':25
  • 'mx#.#aver.com':25
  • 'dt########.mail.protection.outlook.com':25
  • '80.##.75.254':482
  • 'ln###.pinehost.net':25
  • 'nd#####.com.1.arsmtp.com':25
UDP
  • DNS ASK mi##########m.mail.protection.outlook.com
  • DNS ASK ma######er-ng-3.sunet.se
  • DNS ASK ka#.se
  • DNS ASK va##########se.mail.protection.outlook.com
  • DNS ASK va###rdahus.se
  • DNS ASK ap#########.mail.protection.outlook.com
  • DNS ASK ap##eket.se
  • DNS ASK ec#.#ricsson.se
  • DNS ASK ed#.#omma.se
  • DNS ASK ed###########-se.mail.protection.outlook.com
  • DNS ASK ed#.##rlskoga.se
  • DNS ASK mx######91d01.pphosted.com
  • DNS ASK at#.com
  • DNS ASK bo##rket.se
  • DNS ASK ek#.#ricsson.se
  • DNS ASK sa###.com.ph
  • DNS ASK fl###hare.ph
  • DNS ASK em#.ph
  • DNS ASK cy###cebu.ph
  • DNS ASK mx#######001.gslb.pphosted.com
  • DNS ASK to##iba.com
  • DNS ASK be#####nnmanila.com.ph
  • DNS ASK pa#####tholic.ude.ph
  • DNS ASK fl###.mil.ph
  • DNS ASK dl###sb.edu.ph
  • DNS ASK cs#.#lsu.edu.ph
  • DNS ASK pc#.com.ph
  • DNS ASK sk#f.se
  • DNS ASK co####tronic.com
  • DNS ASK ma######ection01.atea.se
  • DNS ASK Ko########.mx1.staysecuregroup.com
  • DNS ASK ko##ers.se
  • DNS ASK nd#####.com.1.arsmtp.com
  • DNS ASK nd##tal.com
  • DNS ASK au##wb.com
  • DNS ASK mx#######801.gslb.pphosted.com
  • DNS ASK ca##r.fr
  • DNS ASK ma##.##ometrisks.com
  • DNS ASK ge###trisks.com
  • DNS ASK mx##.##il.icloud.com
  • DNS ASK ic##ud.com
  • DNS ASK sm#####.#to-hy.se.stejtech.net
  • DNS ASK ne#.#obel.se
  • DNS ASK ho#e.se
  • DNS ASK bi####.###l.protection.outlook.com
  • DNS ASK bi#.se
  • DNS ASK ud##########-se.mail.protection.outlook.com
  • DNS ASK ud###allahem.se
  • DNS ASK ud####llahem.o.se
  • DNS ASK mi##.tv4.se
  • DNS ASK gn#.se
  • DNS ASK se.##2.mx25.net
  • DNS ASK ja##alla.se
  • DNS ASK mx#.####y.mail2world.com
  • DNS ASK sp##y.se
  • DNS ASK fa######.##il.protection.outlook.com
  • DNS ASK fa##r.se
  • DNS ASK no###.com.ph
  • DNS ASK gf#.se
  • DNS ASK am###yst.com.ph
  • DNS ASK mx#.#angia.biz
  • DNS ASK pr##.net
  • DNS ASK 23#.###.#12.82.cbl.abuseat.org
  • DNS ASK be###el.com.ph
  • DNS ASK dt#.ph
  • DNS ASK ju###fou.com
  • DNS ASK ln###.pinehost.net
  • DNS ASK le###ech.com.ph
  • DNS ASK dt#.#ti.gov.ph
  • DNS ASK ur########.mail.protection.outlook.com
  • DNS ASK ur#.com.ph
  • DNS ASK mx.##wered.name
  • DNS ASK ma###nmng.org
  • DNS ASK 23#.###.112.82.in-addr.arpa
  • DNS ASK In#########.mail.protection.outlook.com
  • DNS ASK 23#.###.##2.82.sbl-xbl.spamhaus.org
  • DNS ASK in###book.net
  • DNS ASK in##.com.ph
  • DNS ASK 23#.###.#12.82.zen.spamhaus.org
  • DNS ASK we####vasia.com.ph
  • DNS ASK mx#.#aver.com
  • DNS ASK na##r.com
  • DNS ASK dt########.mail.protection.outlook.com
  • DNS ASK 23#.###.#12.82.bl.spamcop.net
  • DNS ASK dt#.gov.ph
  • DNS ASK mx.####o.locaweb.com.br
  • DNS ASK gl##o.com
  • DNS ASK 23#.###.#12.82.dnsbl.sorbs.net
  • DNS ASK sv####lfheim.top
  • DNS ASK ko##a.com
  • DNS ASK an######nenshus.eksjo.se
  • DNS ASK av####.sys.voztele.net
  • DNS ASK no###ent.org.ph
  • DNS ASK be##########ph.mail.protection.outlook.com
  • DNS ASK et#########.mail.protection.outlook.com
  • DNS ASK et##.com.ph
  • DNS ASK in#########p.us-east-1.amazonaws.com
  • DNS ASK aj####oto.com.ph
  • DNS ASK ASPMX.L.GOOGLE.COM
  • DNS ASK we###ade.com.ph
  • DNS ASK fu###c.com.ph
  • DNS ASK la###letera.ph
  • DNS ASK go###e.co.uk
  • DNS ASK lu##ski.ph
  • DNS ASK mx#.###ispamengine.com
  • DNS ASK fa###ool.xyz
  • DNS ASK hi####springs.info
  • DNS ASK po##hub.com
  • DNS ASK er###mail.com
  • DNS ASK mx#.#ailgun.org
  • DNS ASK zs##o.com
  • DNS ASK mx##.#lackberry.com
  • DNS ASK ri#.com
  • DNS ASK ma##.#epamar.com
  • DNS ASK fe##mar.com
  • DNS ASK 44#####mprovement.com
  • DNS ASK se####.#amaronhosting.net
  • DNS ASK ma##.fegama.org
  • DNS ASK fe##ma.org
  • DNS ASK google.com
  • DNS ASK ma##.###sultronic.com.py
  • DNS ASK r-####6.korea.com
Miscellaneous
Creates and executes the following
  • '%WINDIR%\syswow64\alsjzxcr\nvnxmxfa.exe' /d"<Full path to file>"
  • '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\alsjzxcr\' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\nvnxmxfa.exe" %WINDIR%\SysWOW64\alsjzxcr\' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' create alsjzxcr binPath= "%WINDIR%\SysWOW64\alsjzxcr\nvnxmxfa.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' description alsjzxcr "wifi internet conection"' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' start alsjzxcr' (with hidden window)
  • '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\alsjzxcr\
  • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\nvnxmxfa.exe" %WINDIR%\SysWOW64\alsjzxcr\
  • '%WINDIR%\syswow64\sc.exe' create alsjzxcr binPath= "%WINDIR%\SysWOW64\alsjzxcr\nvnxmxfa.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
  • '%WINDIR%\syswow64\sc.exe' description alsjzxcr "wifi internet conection"
  • '%WINDIR%\syswow64\sc.exe' start alsjzxcr
  • '%WINDIR%\syswow64\svchost.exe'
  • '%WINDIR%\syswow64\svchost.exe' -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.60000 -p x -k -a cn/half

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