A utility to generate malicious network traffic and evaluate controls
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flightsim is a lightweight utility used to generate malicious network traffic and help security teams to evaluate security controls and network visibility. The tool performs tests to simulate DNS tunneling, DGA traffic, requests to known active C2 destinations, and other suspicious traffic patterns.
go get -u github.com/alphasoc/flightsim/...
Upon installation, test flightsim as follows:
$ flightsim --help
AlphaSOC Network Flight Simulator™ (https://github.com/alphasoc/flightsim)
flightsim is an application which generates malicious network traffic for security teams to evaluate security controls (e.g. firewalls) and ensure that monitoring tools are able to detect malicious traffic.
Usage: flightsim [arguments]
Available Commands: run Run all modules, or a particular module version Prints the version number
Cheatsheet: flightsim run Run all the modules flightsim run c2 Simulate C2 traffic flightsim run c2:trickbot Simulate C2 traffic for the TrickBot family
The utility runs individual modules to generate malicious traffic. To perform all available tests, simply use
flightsim runwhich will generate traffic using the first available non-loopback network interface. Note: when running many modules, flightsim will gather destination addresses from the AlphaSOC API, so requires egress Internet access.
To list the available modules, use
flightsim run --help. To execute a particular test, use
flightsim run, as below.
$ flightsim run --help usage: flightsim run [flags] [modules]
To run all available simulators, call:
To run a specific module:
flightsim run c2
c2, dga, miner, scan, sink, spambot, tunnel-dns, tunnel-icmp
Available flags: -dry print actions without performing any network activity -fast reduce sleep intervals between simulation events -iface string network interface or local IP address to use -size int number of hosts generated for each simulator
$ flightsim run dga
AlphaSOC Network Flight Simulator™ (https://github.com/alphasoc/flightsim) The IP address of the network interface is 172.20.10.2 The current time is 23-Jan-20 11:33:21
11:33:21 [dga] Generating a list of DGA domains 11:33:21 [dga] Resolving nurqatp.space 11:33:22 [dga] Resolving uahscqe.top 11:33:23 [dga] Resolving asimazf.biz 11:33:24 [dga] Resolving phxeohj.biz 11:33:25 [dga] Resolving crgwsoe.biz 11:33:26 [dga] Resolving sazafls.biz 11:33:27 [dga] Resolving gljyxdv.space 11:33:28 [dga] Resolving eiontgl.top 11:33:29 [dga] Resolving pqjseqc.top 11:33:30 [dga] Resolving mamsnmu.biz 11:33:31 [dga] Resolving ntettqn.top 11:33:32 [dga] Resolving niyvbvg.top 11:33:33 [dga] Resolving bxgqonb.biz 11:33:34 [dga] Resolving encggla.top 11:33:35 [dga] Resolving qphfoxn.biz 11:33:35 [dga] Done (15/15)
All done! Check your SIEM for alerts using the timestamps and details above.
The modules packaged with the utility are listed in the table below.
| Module | Description | | ------------- | ----------------------------------------------------------------------------- | |
c2| Generates both DNS and IP traffic to a random list of known C2 destinations | |
dga| Simulates DGA traffic using random labels and top-level domains | |
miner| Generates Stratum mining protocol traffic to known cryptomining pools | |
scan| Performs a port scan of random RFC 5737 addresses using common TCP ports | |
sink| Connects to known sinkholed destinations run by security researchers | |
spambot| Resolves and connects to random Internet SMTP servers to simulate a spam bot | |
tunnel-dns| Generates DNS tunneling requests to *.sandbox.alphasoc.xyz | |
tunnel-icmp| Generates ICMP tunneling traffic to an Internet service operated by AlphaSOC |