Using the Immunity Debugger API to Automate Analysis

Osx.Trojan.Leverage, a Breakdown Using Dtrace

This article provides a brief introduction to canned DTrace scripts for the purposes of analyzing the malwaresample, Osx.Trojan.Leverage. For this sample, I only needed to use a few of the canned scripts to gather a significant amount of data about how this piece of malware impac

Micorosft Update Tuesday: March 2014, all about IE (including two 0-day fixes)

It's Microsoft Update Tuesday. While this month is relatively minor, a total of 5 bulletins, it is pretty large for the requisite Internet Explorer bulletin. There’s a total of 23 CVEs covered by the bulletins, 18 of which are found in IE. There’s 2 critical and 3 important

Decoding Domain Generation Algorithms (DGAs) Part III - ZeusBot DGA Reproduction

Note:  The blog post is part 3 of 3.  The first two blog posts can be found: Decoding Domain Generation Algorithms (DGAs): Part I Decoding Domain Generation Algorithms (DGAs) Part II - Catching ZeusBot Injection into Explorer.exe At this point, you can go ahead and close the two

Hello, a new specifically covered exploit kit

We're keeping a pretty close eye on Exploit Kits here at the VRT, and when a new trend or technique starts to rear its head, we pay close attention.  Over the past week or so, we saw an exploit kit doing something unusual - this kit appears to be tracking the Windows systems

Decoding Domain Generation Algorithms (DGAs) Part II - Catching ZeusBot Injection into Explorer.exe

Last week, I talked about unpacking this binary for static analysis. This week, I am going to talk about catching its injected entry point inside explorer.exe. This makes it easier to dynamically analyze the code from the very beginning of its execution routine up to the code uti

Decoding Domain Generation Algorithms (DGAs) - Part I

Part 1 - Unpacking the binary to properly view it in IDA Pro Recently, I came across an executable(MD5: 3D5060066056369B3449606F3E87F777) that was expected to be malicious in nature, but its network behavior was what was really interesting. So the first thing I did was throw it

Microsoft Update Tuesday: February 2014, huge fix for Internet Explorer

The Microsoft Updates are pretty significant this month. Internet Explorer, which was missing from the updates for the first time in a long time last month is back with a whopping 24 vulnerabilities. Besides the IE bulletin, there’s six more bulletins, 4 of which are rated critic

Four vulnerabilities in Pidgin

The VRT is announcing the discovery and patching of 4 CVE vulnerabilities in Pidgin. These vulnerabilities were discovered by the VRT VULNDEV team and reported to the Pidgin team. The VRT also created TRUFFLE rules that have been protecting Sourcefire customers for these vulnerab