Slashdot Mirror

An anonymous reader quotes the AP: Teams of technicians worked "round the clock" Saturday to restore hospital computer systems in Britain and check bank or transport services in other nations after a global cyberattack hit dozens of countries and crippled the U.K.'s health system. The worldwide attack was so unprecedented that Microsoft quickly changed its policy and announced that it will make security fixes available for free for older Windows systems, which are still used by millions of individuals and smaller businesses. [Windows XP, Windows 8, and Windows Server 2003]
An anonymous reader writes: The patches are available for download from here. Microsoft also advises companies and users to disable the Windows Server Message Block version 1 protocol, as it's an old and outdated protocol, already superseded by newer versions, such as SMBv2 and SMBv3... Microsoft had released a fix for that exploit a month before, in March, in security bulletin MS17-010 [which] included fixes for Windows Vista, Windows 7, Windows 8.1, Windows 10, Windows Server 2008, Windows Server 2012, and Windows Server 2016.
Below the fold are more stories about the WanaDecrypt0r ransomware.

• The Los Angeles Times says the attack "shows why Apple refused to hack terrorist's iPhone," and why Google, Apple, and Microsoft resist calls for backdoors. "Though the NSA hasn't confirmed it was hacked, the purported leak of its tools shows that even supposedly secret vulnerabilities can get into the wrong hands.... when flaws the agencies discover pose a threat to the nation's businesses and consumers, they should be forced to help secure systems."
• Science fiction writer Charlie Stross blogged a humorous take on the event, sharing a "Rejection Letter" from Reality Publishing Corporation that argues the plot of his newest thriller -- MS17-010 -- "does not hold up to scrutiny." (A government agency hoards known vulnerabilities about vital infrastructure, then suddenly loses control of them...)
• troublemaker_23 shares ITWire's call for a "public statement of contrition" from Microsoft, which reminds readers that "the ransomware and exploits are just the effects. The vulnerabilities in Windows are the cause."
• There's now a first-person account about the discovery of the kill switch, which insists that registering that domain "was not a whim. My job is to look for ways we can track and potentially stop botnets..."
• Slashdot reader Lauren Weinstein says some antivirus services (and firewalls incorporating their rules) are mistakenly blocking the kill switch's site as a 'bad domain', which allows the malware to continue spreading. "Your systems MUST be able to access the domain above if this malware blocking trigger is to be effective, according to the current reports that I'm receiving!"

"An 'accidental hero' has halted the global spread of the WannaCry ransomware that has wreaked havoc on organizations..." writes The Guardian. An anonymous reader quotes their report: A cybersecurity researcher tweeting as @malwaretechblog, with the help of Darien Huss from security firm Proofpoint, found and implemented a "kill switch" in the malicious software that was based on a cyber-weapon stolen from the NSA. The kill switch was hardcoded into the malware in case the creator wanted to stop it from spreading. This involved a very long nonsensical domain name that the malware makes a request to -- just as if it was looking up any website -- and if the request comes back and shows that the domain is live, the kill switch takes effect and the malware stops spreading. Of course, this relies on the creator of the malware registering the specific domain. In this case, the creator failed to do this. And @malwaretechblog did early Friday morning (Pacific Time), stopping the rapid proliferation of the ransomware.
You can read their first-person account of the discovery here, which insists that registering the domain "was not a whim. My job is to look for ways we can track and potentially stop botnets..." Friday they also tweeted a map from the New York Times showing that registering that domain provided more time for U.S. sites to patch their systems. And Friday night they added "IP addresses from our [DNS] sinkhole have been sent to FBI and ShadowServer so affected organizations should get a notification soon. Patch ASAP."

UPDATE: Slashdot reader Lauren Weinstein says some antivirus services (and firewalls incorporating their rules) are mistakenly blocking that site as a 'bad domain', which allows the malware to continue spreading. "Your systems MUST be able to access the domain above if this malware blocking trigger is to be effective, according to the current reports that I'm receiving!"