Also published were many programs for attacking various versions of the Windows operating system, at least some of which still work, researchers said.
A hacking group has released suspected USA government files that show the National Security Agency may have spied on banks across the Middle East.
Criminals stole millions of dollars from Bangladesh's central bank after Swift was targeted by hackers previous year.
Back in August the group released a bunch of hacking tools and on Friday it released another bunch of "really incredible stuff" according to Nicholas Weaver, a computer security researcher at the International Computer Science Institute in Berkeley on the blog Lawfair. Since, by their own admission, the hacker group has not been paid by anyone to "shutup [sic] and going [sic] away", they have released another cache of tools, this time targeted at Windows systems.
FILE - Former National Security Agency contractor Edward Snowden, center, speaks via video conference to people in the Johns Hopkins University auditorium in Baltimore, Feb. 17, 2016. Mr. Hickey was able to replicate the exploits in his United Kingdom firm's lab and confirmed the authenticity of the leaked spy tools.
"The EastNets Network Internal Security Unit has run a complete check of its servers and found no hacker compromise or any vulnerabilities".
The NSA did not immediately return an email seeking comment.
The opinion was seconded by Matthew Hickey of Prestbury, England-based cybersecurity company Hacker House.
The documents released by the Shadow Brokers on Friday indicate that the NSA may have accessed the SWIFT network through service bureaus.
The hacks amounted to vulnerabilities in Microsoft software that let intruders take over machines running Windows software.
The documents and files were released by a group calling themselves the Shadow Brokers.
EastNets is one of 74 local service bureaus worldwide certified by Swift, acting as an interface between the global network and smaller banks and financial institutions in the Middle East.
The group Friday appeared to release tools created to target Windows PCs and servers, along with presentations and files purporting to detail the agency's methods of carrying out clandestine surveillance.
The Society for Worldwide Interbank Financial Telecommunication (SWIFT) provides a network that enables financial institutions worldwide to send and receive information about financial transactions in a secure, standardised and reliable environment. "NSA did not warn Microsoft".