Thank you for your interest in a career with NSA. We are proud to offer challenging career opportunities in a wide variety of exciting career fields, as well as exceptional employee benefits and valuable career development programs. We also offer students the opportunity to get hands-on experience. When saving your recording automatically, your Mac uses the name ”Screen Recording date at time.mov”. To cancel making a recording, press the Esc key before clicking to record. You can open screen recordings with QuickTime Player, iMovie, and other apps that can edit or view videos. Some apps might not let you record their windows. A former NSA staffer turned security researcher is warning that bypassing typical OS X security tools is trivial. Patrick Wardle, a former NSA staffer and NASA intern who now heads up research at crowd-sourced security intelligence firm Synack, found that Apple's defensive Gatekeeper technology can be bypassed allowing unsigned code to run.
A former NSA staffer turned security researcher is warning that bypassing typical OS X security tools is trivial.
Gem rush mac os. Patrick Wardle, a former NSA staffer and NASA intern who now heads up research at crowd-sourced security intelligence firm Synack, found that Apple's defensive Gatekeeper technology can be bypassed allowing unsigned code to run. Apple's Gatekeeper utility is pre-installed in Mac OS X PCs and used to verify code. The tool is designed so that by default it will only allow signed code to run or, depending on settings, only packages from the Mac App Store.
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Apple's built-in mechanisms - Gatekeeper, XProtect anti-malware, sandboxing and kernel code-signing requirements - are 'easy to get around' and 'trivially exploitable', according to Wardle.
Wardle said he worked closely with Apple's internal security teams describing them as 'responsive' while noting the wider consumer electronics firm had yet to embrace a culture where “comprehensive security is baked into their OS X systems' from the onset. By contrast to OS X, iOS has solid security baked in, according to Wardle.
A bug bounty from Apple - along the lines of schemes introduced by Google, Microsoft and many others - would be beneficial, according to Wardle whose firm Synack would stand to benefit from such a scheme. 'Google products have themselves, become more secure because of bug bounties,' Wardle said. 'Introducing them seems to be a no brainer.'
During the course of his research Wardle also found a way to circumvent Apple's recent fix for the 'rootpipe' privilege escalation vulnerability in OS X. Wardle also coded his own malware to see if a variety of third-party anti-malware utilities could detect it. They all failed.
El Reg caught up with Wardle after a well received tour presenting his research that took him to Infiltrate in Miami and the RSA Conference in San Francisco last month. He explained that he hoped his Infiltrate talk, entitled Writing Bad@ss OS X Malware (pdf), would encourage Mac defenders to up their game.
Simple shooter vol2 mac os. 'The state of OS X malware is amateur, even basic,' Wardle told El Reg. “It relies on trivially detectable persistence mechanisms and generally relies on infecting users via social engineering tricks such as offering ‘free [but infected] copies of PhotoShop’.”
Mac malwares remain measurable in the hundreds or thousands. Mac desktop anti-virus developers can detect most of the nasties out there even though they remain ill-prepared for the type of advanced malware nation states might be able to put together, according to Wardle.
'AV [anti-virus] developers seem to be resting on their laurels,' Wardle explained. 'For example, Windows anti-virus offers heuristics and runtime behavioral analysis, but Mac may not.”
Up until recently all Mac security software packages downloaded over unencrypted http connections, relying on Garekeeper for code verification. Because Wardle uncovered a way to bypass Gatekeeper, this opens the door to man-in-the-middle or other attacks.
'More advanced attackers, such as nation states, would be able to see a download in progress before injecting code into legitimate downloads,' Wardle explained.
Apple might like to lock down Macs and 'impose more control of third party code' but this is more difficult to impose on desktop systems than on smartphones and tablets running iOS, according to Wardle.
Asked whether he was concerned that his research might be giving bad guys ideas they hadn't thought of themselves, Wardle justified his work.
'Advanced adversaries are likely already doing these things,' he said, adding by way of example the Rootpipe zero-day privileged execution vulnerability [CVE-2015-1130) that - once publicly disclosed - was subsequently found in OS X malware that predated the vulnerability being reported to Apple.
Since Wardle first published his research some vendors have switched to downloads over secure (https) connections.
'I love Mac products. I have an iPhone and iPad and I want them to be secure,' he said, adding that he had released a set of free software tools to secure Macs, available at objective-see.com.
Another problem is that Apple's desktop OS allows locally unsigned apps to run. Once hackers have compromised a machine they can take a signed binary and add their own code before re-signing it.
'OS X won't detect that an app that used to be signed is no longer signed,' and still allows it to run, Wardle explained.
OS X is also vulnerable to dynamic library hijack attacks, through abusing undocumented features of OS X’s dynamic loader. This new class of attacks - similar to far more established DLL hijacking attacks in Windows - gives hackers another means to attack Macs.
Wardle's research also covered the possible use of encrypted Mac malware binaries and rootkit-like stealth techniques, as explained in much greater depth in slides from his RSAC presentation here (pdf). ®
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About the Summer Programs
The NSA has summer opportunities for undergraduate and graduate students majoring in mathematics or statistics. Applicants must be enrolled as full time students when the application is submitted. Due to the lengthy processing required, applications must be received by October 15th each year. To initiate your application, visit www.intelligencecareers.gov/nsa.
The NSA has summer opportunities for undergraduate and graduate students majoring in mathematics or statistics. Applicants must be enrolled as full time students when the application is submitted. Due to the lengthy processing required, applications must be received by October 15th each year. To initiate your application, visit www.intelligencecareers.gov/nsa.
Director’s Summer Program (DSP)
The DSP is the NSA’s premier summer outreach to the nation’s most outstanding undergraduate mathematics majors. We invite 25 students who have demonstrated superior mathematical aptitude to collaborate with each other and NSA mathematicians on problems critical to the intelligence gathering and cybersecurity missions of the Agency. A full year of abstract algebra and analysis is strongly recommended. Some experience in computer programming, especially in C, Python, and in mathematical software packages is desirable.
The DSP is the NSA’s premier summer outreach to the nation’s most outstanding undergraduate mathematics majors. We invite 25 students who have demonstrated superior mathematical aptitude to collaborate with each other and NSA mathematicians on problems critical to the intelligence gathering and cybersecurity missions of the Agency. A full year of abstract algebra and analysis is strongly recommended. Some experience in computer programming, especially in C, Python, and in mathematical software packages is desirable.
DSP participants work on problems in mathematics, cryptology, and communications science that involve applications of abstract algebra, geometry, number theory, probability, statistics, combinatorics, graph theory, algorithms, computer science, and analysis. Each student chooses one of these problems as the focus of their research and documents the work in technical papers which are internally published at NSA.
Cryptanalysis and Signals Analysis Summer Program (CASASP)
The CASASP gives undergraduate mathematicians and computer scientists a chance to contribute to mission-essential technical operations. We invite 12 students to learn, use, and further our tradecraft while working on operational problems of national importance. The problems involve applications of math, statistics, computer science, reverse engineering, and software development with results integrated into production systems for new capabilities.
The CASASP is seeking students majoring in mathematics, computer science, or related engineering fields that have a year of mathematics beyond calculus and some programming experience. Experience in C, C++, Java, Python, or some mathematical software package is desirable.
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Graduate Mathematics Program (GMP)
The GMP provides an opportunity for exceptional mathematics and statistics graduate students to work directly with NSA Mathematicians on mission-critical problems and experience the excitement of the NSA mathematics community.
Applicants should have demonstrated superior mathematical aptitude and problem-solving skills. Evidence of successful work on an independent project in pure or applied mathematics, statistics, data science, or computer science is desirable. Applicants may be at any stage in their graduate careers or intending to work in any area of mathematics or statistics. Computer programming experience, especially Python, C or C++, is desirable.
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GMP participants work on problems involving math, stats, data analysis, cryptology, and communications technology and document their work in technical papers which are internally published at NSA.
Summer Hiring Process
The Summer Internships are 12-week programs held at NSA headquarters in Fort Meade, MD from late May through mid-August. Students will receive annual, sick, and federal holiday leave and are paid a competitive salary based on education level. Subsidized housing is available.
In addition to applying online at www.intelligencecareers.gov/nsa, the below items must be emailed to [email protected] or sent via postal mail by October 15th to complete the application submission process:
- Resume or CV
- Transcripts of college and university coursework, including community college (official or unofficial accepted)
- Two letters of recommendation from faculty members familiar with your technical work
- List of courses that will be completed by the end of the academic year
National Security Agency
9800 Savage Road, Suite 6844
Fort George G. Meade, MD 20755-6844
ATTN: R1 (Name of Internship)
9800 Savage Road, Suite 6844
Fort George G. Meade, MD 20755-6844
ATTN: R1 (Name of Internship)