JAVA_OBFUS.BA
a variant of Java/Obfus.Z trojan (Eset)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan may arrive bundled with malware packages as a malware component. It may be hosted on a website and run when a user accesses the said website.
TECHNICAL DETAILS
11,242 bytes
JAR, Java
No
29 Nov 2013
Arrival Details
This Trojan may arrive bundled with malware packages as a malware component.
It may be hosted on a website and run when a user accesses the said website.
Download Routine
This Trojan downloads a possibly malicious file from a certain URL. The URL where this malware downloads the said file depends on the following parameter(s) passed on to it by its components:
- JbKMXsMps
- iElhPDl
- UcPgpbejQ
Other Details
This Trojan drops the following file(s)/component(s):
- %User Temp%\{random value}
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
SOLUTION
9.300
10.442.05
29 Nov 2013
10.443.00
30 Nov 2013
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Close all opened browser windows
Step 3
Scan your computer with your Trend Micro product to delete files detected as JAVA_OBFUS.BA. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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