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Emerging Threat on VALYRIA

    • Updated:
    • 23 Aug 2017
    • Product/Version:
    • Deep Security 10.0
    • Deep Security 10.1
    • Deep Security 8.0
    • Deep Security 9.0
    • Deep Security 9.5
    • Deep Security 9.6
    • Hosted Email Security 2.0
    • Hosted Email Security 3.0
    • InterScan Messaging Security Virtual Appliance 8.2
    • InterScan Messaging Security Virtual Appliance 8.5
    • InterScan Messaging Security Virtual Appliance 9.0
    • InterScan Messaging Security Virtual Appliance 9.1
    • InterScan Web Security Virtual Appliance 5.6
    • InterScan Web Security Virtual Appliance 6.0
    • OfficeScan 11.0
    • OfficeScan XG.All
    • ScanMail for Exchange 10.2
    • ScanMail for Exchange 11.0
    • ScanMail for Exchange 12.0
    • ScanMail for Lotus Domino 5.0 AIX
    • ScanMail for Lotus Domino 5.0 Windows
    • ScanMail for Lotus Domino 5.0 zLinux
    • Worry-Free Business Security Standard/Advanced 8.0
    • Worry-Free Business Security Standard/Advanced 9.0
    • Worry-Free Business Security Standard/Advanced 9.5
    • Platform:
    • N/A N/A
Summary

TROJ_VALYRIA is a password protected Microsoft document file containing malicious scripts embedded in its document body (detected as VBS_NEMUCOD).  NEMUCOD, a script malware known through its highly obfuscated “download and execution” script, is now evolving from JavaScript to a Visual Basic Script malware.

As a Payload, TSPY_URSNIF is downloaded by VBS_NEMUCOD, stealing users’ information and then attempting to send and receive information from a certain host URL.

VALYRIA_Infection Chain

Click image to enlarge

Anti-Spam Pattern

LayerDetectionPattern VersionRelease Date
INFECTIONVBS_VALYRIA.A13.413.00



































   5/18/2017 14:07
INFECTIONVBS_VALYRIA.B13.413.00
INFECTIONVBS_VALYRIA.C13.413.00
INFECTIONVBS_VALYRIA.D13.413.00
INFECTIONVBS_VALYRIA.E13.413.00
INFECTIONVBS_VALYRIA.F13.413.00
INFECTIONVBS_VALYRIA.G13.413.00
INFECTIONVBS_VALYRIA.H13.413.00
INFECTIONVBS_VALYRIA.I13.413.00
INFECTIONTROJ_VALYRIA.GAS13.413.00
INFECTIONTROJ_VALYRIA.GGA13.413.00
INFECTIONTROJ_VALYRIA.LNKA13.413.00
INFECTIONTROJ_VALYRIA.DOC13.413.00
INFECTIONTROJ_VALYRIA.DOCA13.413.00
INFECTIONTROJ_VALYRIA.DOCB13.413.00
INFECTIONTROJ_VALYRIA.DOCC13.413.00
INFECTIONTROJ_VALYRIA.DOCD13.413.00
INFECTIONTROJ_VALYRIA.DOCE13.413.00
INFECTIONTROJ_VALYRIA.DOCF13.413.00
INFECTIONTROJ_VALYRIA.DOCG13.413.00
INFECTIONTROJ_VALYRIA.DOCH13.413.00
INFECTIONTROJ_VALYRIA.DOCI13.413.00
INFECTIONTROJ_VALYRIA.DOCJ13.413.00
INFECTIONTROJ_VALYRIA.DOCK13.413.00
INFECTIONTROJ_VALYRIA.DOCL13.413.00
INFECTIONTROJ_VALYRIA.DOCN13.413.00
INFECTIONTROJ_VALYRIA.DOCQ13.413.00
INFECTIONTROJ_VALYRIA.DP13.413.00
INFECTIONTROJ_VALYRIA.GQA13.413.00
INFECTIONTROJ_VALYRIA.FQA13.413.00
INFECTIONTROJ_VALYRIA.AQX13.413.00
INFECTIONTROJ_VALYRIA.AUSQO13.413.00
INFECTIONTROJ_VALYRIA.AUSQP13.413.00
INFECTIONTROJ_VALYRIA.AUSQQ13.413.00
INFECTIONTROJ_VALYRIA.AUSQR13.413.00
INFECTIONTROJ_VALYRIA.AUSQS13.413.00
INFECTIONTROJ_VALYRIA.AUSQT13.413.00
INFECTIONTROJ_VALYRIA.AUSQU13.413.00
INFECTIONTROJ_VALYRIA.AUSQV13.413.00
INFECTIONTROJ_VALYRIA.AUSQW13.413.00
INFECTIONTROJ_VALYRIA.AUSQX13.413.00
INFECTIONTROJ_VALYRIA.AUSQY13.413.00
INFECTIONTROJ_VALYRIA.AUSQZ13.413.00
INFECTIONTROJ_VALYRIA.AUSRA13.413.00
INFECTIONTROJ_VALYRIA.AUSRB13.413.00
INFECTIONTSPY_URSNIF.GQA13.417.005/20/2017 11:38

Web Reputation (Malicious URL’s and Classification)

LayerURLRatingRelease Date
EXPOSURE{blocked}185.189.14.193/odg.jdMalware Accomplice3/20/2017
EXPOSUREhxxp://{blocked}91.210.166.142/skdata.sqlMalware Accomplice5/18/2017
EXPOSUREhxxp://{blocked}91.210.166.142/skdata.sqlMalware Accomplice5/18/2017
EXPOSUREhxxp://urbansoft{blocked}.cc/sql.dbMalware Accomplice5/11/2017
EXPOSUREhxxp://{blocked}185.188.183.206/report.prtDisease Vector4/21/2017
EXPOSUREhxxp://aura-proprete{blocked}.fr/sck.txtDisease Vector4/25/2017
EXPOSUREhxxp://{blocked}185.195.25.79/5324.csvMalware Accomplice5/18/2017
EXPOSUREhxxp://coloctionneur{blocked}.fr/license.csvMalware Accomplice5/18/2017
EXPOSUREhxxp://{blocked}91.210.164.3/22.dobMalware Accomplice5/18/2017
EXPOSUREhxxp://{blocked}185.188.183.235/img.jptMalware Accomplice4/13/2017
EXPOSUREhxxp://legadodevelopmentgroup{blocked}.com/tmp.pkgMalware Accomplice5/5/2017

Web Reputation (Malicious URL’s and Classification)

LayerDetectionPattern VersionRelease Date
AEGIS4914TOPR 16716/14/2017
 
Make sure to always use the latest pattern available to detect the old and new variants of VALYRIA.
Details
Public

Solution Map - What should customers do?

Major ProductsVersionsVirus PatternBehavior MonitoringWeb ReputationDCT PatternAntispam PatternNetwork Pattern
OfficeScan11 SP1 above






Update Pattern via web console
Update Pattern via Web console








Enable Web Reputation Service*




Update Pattern via web console



Not Applicable

Update Pattern via web console
Worry-Free Business SuiteStandard
Not Applicable
Advanced/MSAUpdate Pattern via web console
Hosted
Deep Security8.0 and above





Not Applicable
Update Pattern via web consoleNot ApplicableUpdate Pattern via web console
ScanMailSMEX 10 and later


Not Applicable


Update Pattern via Web console


Not Applicable
SMD 5 and later
InterScan MessagingIMSVA 8.0 and above
InterScan WebIWSVA 6.0 and later
Deep DiscoveryDDI 3.0 and later
Not Applicable
Update Pattern via web console
 
* Refer to the Product Administrator’s Guide on how to enable the Email Reputation or Web Reputation services features.

Recommendations

Threat Report

Premium
Internal
Rating:
Category:
SPEC
Solution Id:
1117788
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