Slashdot videos: Now with more Slashdot!
We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).
Jonathan Zdziarski, a forensic scientist and researcher who has worked extensively with law enforcement and intelligence agencies, has spent quite a bit of time looking at the capabilities and services available in iOS for data acquisition and found that some of the services have no real reason to be on these devices and that several have the ability to bypass the iOS backup encryption. One of the services in iOS, called mobile file_relay, can be accessed remotely or through a USB connection can be used to bypass the backup encryption. If the device has not been rebooted since the last time the user entered the PIN, all of the data encrypted via data protection can be accessed, whether by an attacker or law enforcement, Zdziarski said. Update: 07/21 22:15 GMT by U L : Slides.
The Critroni ransomware is selling for around $3,000 and researchers say it is now being used by a range of attackers, some of whom are using the Angler exploit kit to drop a spambot on victims' machines. The spambot then downloads a couple of other payloads, including Critroni. Once on a victim's PC, Critroni encrypts a variety of files, including photos and documents, and then displays a dialogue box that informs the user of the infection and demands a payment in Bitcoins in order to decrypt the files.
"It uses C2 hidden in the Tor network. Previously we haven't seen cryptomalware having C2 in Tor. Only banking trojans," said Fedor Sinitsyn, senior malware analyst at Kaspersky Lab, who has been researching this threat. "Executable code for establishing Tor connection is embedded in the malware's body. Previously the malware of this type, this was usually accomplished with a Tor.exe file. Embedding Tor functions in the malware's body is a more difficult task from the programming point of view, but it has some profits, because it helps to avoid detection, and it is more efficient in general."
"It is actually only a problem with the author's contrived test program," Beck said. "While it's a real issue, it's actually a fairly minor one, because real applications don't work the way the author describes, both because the PID (process identification number) issue would be very difficult to have become a real issue in real software, and nobody writes real software with OpenSSL the way the author has set this test up in the article."
Experts determined that the threat group targets servers storing corporate financial data, customer data and other sensitive information. A second payload downloaded by the malware then establishes a sophisticated C&C on the company's finance servers, enabling the attackers to exfiltrate the information they're after. The malware used by the Zombie Zero attackers is highly sophisticated and polymorphic, the researchers said. In one attack they observed, 16 of the 48 scanners used by the victim were infected, and the malware managed to penetrate the targeted organization's defenses and gain access to servers on the corporate network. Interestingly, the C&C is located at the Lanxiang Vocational School, an educational institution said to be involved in the Operation Aurora attacks against Google, and which is physically located only one block away from the scanner manufacturer, TrapX said.
I have a maintenance window at about 5AM tomorrow. It's fairly simple — upgrade CentOS, remove a package, install a package, reboot. Downtime shouldn't be more than 5 minutes. While I don't think it would be wise to automate this window, I think with sufficient testing we might be able to automate future maintenance windows so I or someone else can sleep in. Aside from the benefit of getting a bit more sleep, automating this kind of thing means that it can be written, reviewed and tested well in advance. Of course, if something goes horribly wrong having a live body keeping watch is probably helpful. That said, we do have people on call 24/7 and they could probably respond capably in an emergency. Have any of you tried to do something like this? What's your experience been like?