Spyware, Viruses, & Security forum

General discussion

Websense - Unpacking Storm Worm : Code and Import Address Ta

by Marianna Schmudlach / July 1, 2008 4:03 PM PDT

Unpacking Storm Worm : Code and Import Address Table onto the heap


As part of my series of blogs about custom packers, this blog presents techniques to quickly unpack the Storm Worm packer, even if the unpacked code is executed onto the heap, the code is relocated, and the Import Address Table is also on allocated memory.

Storm Worm attackers have been using many different packers, and even if their primary goal isn't to protect against reverse engineering, they have introduced various techniques to slow down analysis. Today's main trick is the execution of code onto the heap. This prevents process dumpers from working, because they dump to disk only the code loader (the actual process you are executing), and not the malicious code.

More: http://securitylabs.websense.com/content/Blogs/3127.aspx

Discussion is locked
You are posting a reply to: Websense - Unpacking Storm Worm : Code and Import Address Ta
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Websense - Unpacking Storm Worm : Code and Import Address Ta
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Popular Forums
Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Your favorite shows are back!

Don’t miss your dramas, sitcoms and reality shows. Find out when and where they’re airing!