 mysec Premium join:2005-11-29
| reply to RobertLudlum Followup
I received an email asking if any of the exploits given as examples were very widespread. A year ago, the animated cursor exploit was used in a DNS cache poisoning attack.
From »isc.sans.org/presentations/dnspoisoning.php :
We received some logs from two of the machines that were used to launch the initial attack observed on March 4. Remember, that those machines were compromised. The log files from those machines indicate the following statistics over a 3 day period (Mar 2 - 5):
-- 1,304 domain names were poisoned/hijacked -- 7,973,953 HTTP get attempts from 966 unique IP addresses. -- 75,529 incoming email messages from 1,863 different mailservers. -- 7,455 failed FTP logins from 635 unique IP addresses (95 unique user accounts). -- 7,692 attempted IMAP logins (805 unique users, 411 unique IP addresses). -- 2,027 attempted logins to 82 different webmail (HTTP) servers.
What malware was placed on my machine if I visited the evil servers?
The webservers in the first/third attack tried to drop a spyware program onto the victim's computer using a Microsoft Internet Explorer vulnerability for ani cursor handling. The vulnerability was released on January 11, 2005 and further technical information can be found here:
http://www.microsoft.com/technet/security/Bulletin/MS05-002.mspx Proof of concept exploit code was publicly released soon after the vulnerability was announced. The filenames being used in this attack were: abx.ani and abx22.ani. Using VirusTotal, these ani files were detected as:
Kaspersky: Trojan-Downloader.Win32.ani.d McAfee: Exploit-anifile BitDefender: Exploit.Win32.MS05-002.Gen The ani exploit attempted to download one of the following two executable files (same exact file) on the webserver: abx_search.exe or mhh.exe. These binaries were detected as:
Kaspersky: AdWare.ToolBar.SearchIt.h Panda: Adware/AbxSearch If you were infected by this toolbar, you should run your favorite spyware/adware program to identify and clean it from your computer. ____________________________________________________________
The fact that we still see these exploits, even though now patched, indicates the people out there are still vulnerable.
Late last year, we saw the wmf file remote code execution exploit.
You may have noticed the recent Microsoft patches include several types of Remote Code Excecution:
MS06-013 - Cumulative Security Update for Internet Explorer - Impact: Remote Code Execution
MS06-014 - Vulnerability in the Microsoft Data Access Components - Impact: Remote Code Execution
MS06-015 - Cumulative Security Update for Internet Explorer - Impact: Remote Code Execution
MS06-016 - Cumulative Security Update for Outlook Express - Impact: Remote Code Execution
MS06-017 - Vulnerability in Microsoft FrontPage Server Extensions Could Allow Cross-Site Scripting - Impact: Remote Code Execution
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