Backdoor.MacOS.APPLEJEUS.YEBBW
OSX
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It executes commands from a remote malicious user, effectively compromising the affected system.
TECHNICAL DETAILS
Arrival Details
This Backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Backdoor drops the following files:
- /Library/JMTTrader/CrashReporter -> drops malicious file
- /Library/LaunchDaemons/org.jmtrading.plist
Backdoor Routine
This Backdoor executes the following commands from a remote malicious user:
- exit -> Terminates the process
- kcon
- up -> creates and writes a file from C&C
- any other input from C&C will execute the strings with popen() command
It connects to the following URL(s) to send and receive commands from a remote malicious user:
- https://{BLOCKED}oc.com/grepmonux.php
Other Details
This Backdoor does the following:
- This file is usually included in a malicious pkg file that has a postinstall script. Having this file installed in the system gives an indication of a malware present in system.
- This file itself was seen only to be bystander application that is installed
SOLUTION
Scan your computer with your Trend Micro product to delete files detected as Backdoor.MacOS.APPLEJEUS.YEBBW. 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 the following Trend Micro Support pages for more information:
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