OSX_GEONEI.A

October 24, 2014

Analysis by: RonJay Kristoffer Caragay

Modified by: Rhena Inocencio

ALIASES:

OSX/Genieo.D (AVG); MacOS:Genieo-K [PUP] (Avast); Gen:Variant.Adware.MAC.OSX.Genieo.1 (BitDefender); a variant of OSX/Adware.Genieo.K (ESET-NOD32); Adware/OSX_Geonei (Fortinet); OSX/Geonei-A (Sophos); Genieo (Symantec)

PLATFORM:

Mac OS X

OVERALL RISK RATING:

DAMAGE POTENTIAL:

DISTRIBUTION POTENTIAL:

REPORTED INFECTION:

INFORMATION EXPOSURE:

Threat Type: Adware
Destructiveness: No
Encrypted: No
In the wild: Yes

OVERVIEW

This adware arrives as a component bundled with malware/grayware packages. It may be manually installed by a user.

TECHNICAL DETAILS

File Size:

Varies

File Type:

Other

Memory Resident:

Yes

Initial Samples Received Date:

16 Aug 2014

Payload:

Connects to URLs/IPs, Downloads files

Arrival Details

This adware arrives as a component bundled with malware/grayware packages.

It may be manually installed by a user.

Download Routine

This adware accesses the following websites to download files:

http://{BLOCKED}-installer.{BLOCKED}t.com/install?session_id={GUID}&app_id=0&offer_id=0&os_version={OS version}&install_version=0&r={value}&disable_dynamic_update=0&active_browser=all

NOTES:

This adware does not complete its installation due to the unavailability of the accessed site.

If successfully installed, it drops the following component:

/private/etc/launchd.conf - detected as OSX_GEONCONF.SM or OSX_GEONCONF.SMA

It accesses the following webpage once successfully installed:

It monitors websites visited by users and posts live updates of ongoing events that the users follow.

SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

10.988.07

FIRST VSAPI PATTERN DATE:

16 Aug 2014

VSAPI OPR PATTERN File:

10.989.00

VSAPI OPR PATTERN Date:

16 Aug 2014

NOTES:

Scan using Trend Micro product and take note of the detected path.
If the detected file is mounted, EJECT the corresponding volume:
- In the Finder’s menu bar, click Go > Computer.
- In the opened window, right click on the volume where detection was seen.
- Select Eject
Identify and terminate the running .APP process using the noted path in the previous step.
- Open the Terminal
  Applications>Utilities>Terminal or type ‘Terminal’ in Spotlight.
- Type the following in the terminal:
  - ps –A
- Look for the detected file (commonly named as Installer.app) and take note of its PID. If the detected file is not found to be running, please proceed to the next step.
- In the same terminal, type the following:
  - kill {PID}
Remove the detected files
- In the same terminal, type the following and press enter:
  - sudo rm –R {grayware path and filename}.dmg
  - sudo rm –R {grayware path and filename}.app
Scan your computer with your Trend Micro product to delete files detected as OSX_GEONEI.A.