- #USING PLUGINS IN IDA PRO MANUAL#
- #USING PLUGINS IN IDA PRO FULL#
- #USING PLUGINS IN IDA PRO SOFTWARE#
- #USING PLUGINS IN IDA PRO CODE#
- #USING PLUGINS IN IDA PRO PLUS#
#USING PLUGINS IN IDA PRO MANUAL#
The analysis should not take longer than 30 seconds, or you need to increase the API timeout limit in the DDR config menu via "Set number of seconds for API timeout." Alternatively, for larger traces, you can also use the manual analysis as described above.
#USING PLUGINS IN IDA PRO FULL#
You are usually running the full traces for cases where you are interested in the details of a function or you are analyzing certain basic blocks, such as a crypto routine, and you need details about all the instructions and it's operands (ex. The default is 20,000, which works well on an average PC. You can set the maximum number of instructions to trace via the "Config/Set number of instructions to log" menu. For example, to highlight as many basic blocks as possible, based on the number of times they were executed or to get an overview of the API calls touched by the sample. This means you usually want to pick the light trace if you want to execute as many instructions as possible to get an overview of what the sample is doing. In other words, it logs the instructions that are executed at runtime, as well as some basic information for control flow related instructions like call, jmp, ret and others.
#USING PLUGINS IN IDA PRO CODE#
The light trace is mainly doing a quick code trace. Their execution takes much more time and consumes much more memory than the light trace. The full trace options are collecting far more runtime information than the light trace one. They can all be accessed via the Trace menu shown in Figure 12. The DDR IDA plugin menu offers several different options for running the trace. Obviously, before you can resolve any dynamic values in IDA, you need to run a trace first or load the JSON file manually. " or "Get memory…" menus to resolve a dynamic value for an operand.Īll features in the DDR plugin are accessed via the right-click context menu in IDAs Disassembler View. Once you see in the IDA logging output window that the plugin has received the JSON file successfully (point 5 in Figure 10) you can pick one of the "Get value. But again, this is usually not necessary. See the "Special Cases" section below for details. However, if you want to execute the malware on an air-gapped or Python-free system, you can also do the analysis manually and run the DynamoRio client alone. In most circumstances, you can start an analysis to gather dynamic values, from the DDR menu within IDA. Theoretically, you can run the plugin and the server on the same PC, but as far as the malware sample is executed, it is highly recommended to do this on a separate machine. We picked JSON as the format for this data to make it easier to troubleshoot and to make it easily parsable by third-party Python scripts. Once the DynamoRIO client backend is done with the analysis, the result is sent back to the plugin. Usually, all the analysis processes are controlled via the plugin.
This DLL is using instrumentation techniques to analyze and monitor the malware sample at runtime. The DynamoRio client is a DLL written in C, which is executed by the DynamoRIO tool drrun.exe. The DDR IDA plugin and the DDR server are Python scripts. Resolving dynamic values and auto-commentingĪutomatically create Debugger scripts, including patchesĭDR has the client/server architecture shown in Figure 9. This includes all occurrences where certain instructions hit, such as call, jxx, etc. Shows which basic blocks were executed how many times by approximately 20 different colors
#USING PLUGINS IN IDA PRO PLUS#
For the 1.0 release, we have fixed a couple of bugs, ported it to the latest IDA version, added multiple new features, plus a new installer script that automatically resolves all dependencies.Ī full list of all new features can be found in the New Features 1.0 Release section. DDR is using instrumentation techniques to resolve dynamic values at runtime from the sample. Today, Cisco Talos is releasing the 1.0 beta version of Dynamic Data Resolver (DDR) - a plugin for IDA that makes reverse-engineering malware easier. If you try to perform dynamic analysis by debugging a piece of malware, the malware will often detect it and start behaving differently. Certain values are calculated at run time, which makes it difficult to understand what a certain basic block is doing. Static reverse-engineering in IDA can often be problematic.
#USING PLUGINS IN IDA PRO SOFTWARE#
10/20/20 Update: A new version of this software and associated blog can be found here