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JAVA_EXPLOIT.NLK

October 09, 2012
 Analysis by: Jasen Sumalapao
 ALIASES:

Exploit.Java.CVE-2012-1723.bh (Kaspersky), Trojan.Gen.2 (Symantec), Exploit-CVE2012-1723.f !! (NAI), EXP/2012-0507.CO.3 (Antivir), Java/CVE_2012_1723.BH!exploit (Fortinet), Exploit.Java.CVE-2012 (Ikarus), Java/Exploit.CVE-2012-0507.DN trojan (NOD32)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan may arrive bundled with malware packages as a malware component. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be hosted on a website and run when a user accesses the said website.

It exports functions used by other malware. It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size:

5,464 bytes

File Type:

Java Class

Memory Resident:

Yes

Initial Samples Received Date:

07 Aug 2012

Arrival Details

This Trojan may arrive bundled with malware packages as a malware component.

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be hosted on a website and run when a user accesses the said website.

Download Routine

This Trojan takes advantage of the following software vulnerabilities to download possibly malicious files:

  • CVE-2012-1723

Other Details

This Trojan exports functions used by other malware.

It requires its main component to successfully perform its intended routine.