SecureMac.com
About SecureMac Advertise Security Consulting Mac Security Store Send Feedback

Site Information
Site Background
Who runs the site
Advertising
Security Consulting
Employment/Jobs
Feedback Form

SecureMac Software
PrivacyScan

 

Mac OS X Security
sudo buffer overflow exploit + fix
Disable Single User Boot Mode
Malevolence - Dumping Passwords
nidump security
Startup Security - Open Firmware Password Protection

Mac OS X Network Security
SAINT
Secure FTP Wrapper
Ettercap - sniffer interceptor logger
Snort - Network Intrusion Detection System
SSH Admin
SSH Helper
xnu - enable MAC Address spoofing


Mac OS X Virus

Mac OS X Firewalls
Firewalk Firewall Utility
NetBarrier X

Mac OS X App Sec.

Mac OS X Encryption
LittleSecrets
GPGMail - PGP Functionality

Mac OS X DoS

SecureMac Library
Mac Cable Modem Security
Mac Security Auditing
Mac OS X Security Understanding
Mac OS X Security Second Lessons
Mac OS X Security Third Lesson
Mac OS X Single User Mode Root Access
Mac OS X Shareware Firewalls
Mac OS X Secure Installation
Cable & DSL Connections - Security Measures
Better Safe than Sorry
Apple.com Security Resources
Marketing Macintosh Security Programs

AppleScript.THT Trojan Horse

New OS X Trojan Horse in the Wild

SecureMac Security Advisory

Discovery: June 19th, 2008

Updated: 6.23.08

Security Risk: Critical

SecureMac has discovered multiple variants of a new Trojan horse in the wild that affects Mac OS X 10.4 and 10.5. The Trojan horse is currently being distributed from a hacker website, where discussion has taken place on distributing the Trojan horse through iChat and Limewire. The source code for the Trojan horse has been distributed, indicating an increased probability of future variants of the Trojan horse.

The Trojan horse runs hidden on the system, and allows a malicious user complete remote access to the system, can transmit system and user passwords, and can avoid detection by opening ports in the firewall and turning off system logging. Additionally, the AppleScript.THT Trojan horse can log keystrokes, take pictures with the built-in Apple iSight camera, take screenshots, and turn on file sharing. The Trojan horse exploits a recently discovered vulnerability with the Apple Remote Desktop Agent, which allows it to run as root.

The Trojan is distributed as either a compiled AppleScript, called ASthtv05 (60 KB in size), or as an application bundle called AStht_v06 (3.1 MB in size). The user must download and open the Trojan horse in order to become infected. Once the Trojan horse is running, it will move itself into the /Library/Caches/ folder, and add itself to the System Login Items.

Once installed, the Trojan horse turns on File Sharing, Web Sharing, and Remote Login. If the filename of the Trojan horse has not been changed, it can be located in the /Library/Caches folder under the name AStht_06.app.

Until a patch is issued for the Apple Remote Desktop Agent exploit, SecureMac classifies the security risk presented by this Trojan horse as high.

Protection: To protect your system against this threat, run MacScan 2.5.2 (MacScan is a product of SecureMac) with the latest Spyware Definitions update (2008011), dated June 19th, 2008. SecureMac recommends that users download files only from trusted sources and sites.

Additional removal instructions and resources will be posted once available.

Resources:
WashingtonPost analysis on AppleScript.THT Trojan Horse

About MacScan:
 MacScan quickly detects, isolates and removes spyware from Macintosh computers using both real-time spyware definition updating and unique detection methods.  The software also manages internet-related clutter on your computer. It is designed for Mac OS X version 10.2.4 and later, and is compatible with OS X 10.5 (Leopard). For more information, or to download a demo version of MacScan, visit http://macscan.securemac.com.

About SecureMac: 
Since 1999, SecureMac.com has been at the forefront of Macintosh system security. The site not only features complete Macintosh Anti-Spyware and Antivirus solutions, but also operates as a clearinghouse for news, reviews and discussion of Apple computer security issues. Users from novice to the most advanced will find useful information at SecureMac that is designed to make their computer experience trouble free.



Security + OS
DiskLock
PowerBook Security Control Panel
Empower Pro
FileGuard
FreeGuard
FoolProof
Deus Lock Master
OnGuard
Keys Off
LockOut
MacOS Algorithm
Modem Security
Password Key
PGPuam
PPF
Shift Key Suite
Stealth Signal
SuperLock Lite
SuperLock Pro
Web-Confidential


Macintosh Viruses
Disinfectant
Sophos Anti-Virus
Norton AntiVirus
Nav 7 Nav 6 Nav X
Virex - Oct
VirusBarrier - Netupdate
vScan - Discontinued.

Mac Physical Security


Macintosh Firewalls
DoorStop Firewall
Firewall Q & A
IPNetSentry
NetBarrier
Norton Personal Firewall

Mac Spyware & Privacy
Monitorer
NetShred - Delete Files Safely

Network Security
MacAnalysis
Oyabun Tools
WDTech RAE
ToolDaemon

Application Security Issues
AIM - AOL Instant Messenger
Back Orifice
Eudora E-Mail Client
Internet Configure
IE 5.1, OE 5.1, Powerpoint, Excel Vulnerability
MS Personal webServer
NetBus
Outlook Express 4.5 Password Flaw
SubSeven
Sub7ME Server

Resource Info
AppleShare Server Info

Mac OS Encryption
EnScript
FGP
FileTwister
ForgotIt?
GenPass
MacLockSmith
My-Privacy
My Secret
PGPi
PGPhone
PGP Personal
PGP Freeware
PowerCrypt-dev
Private File
Quick Encrypt
SubRosa Utilities
Tresor

Deleting Files
Eraser Pro
ShredIt

Backups

Apple Hardware

MacOS DoS
Mac Attack


All material (c) 2014 SecureMac.com and respected owners