JavaScript-Based Safari Ransomware Exploit Patched in iOS 10.3

iOS 10.3, released to the public this morning, fixes a bug that allowed scammers to attempt to extort money from iOS users through a JavaScript pop-up in Safari.

As explained by mobile security firm Lookout (via Ars Technica), the scammers targeted iOS users viewing pornographic material and abused JavaScript pop-ups to create an endless pop-up loop that essentially locked the browser if the user didn't know how to bypass it.

ransomwarescam
Using "scareware" messages and posing as law enforcement, the scammers used the pop-ups to extort money in the form of iTunes gift cards from the victim, promising to unlock the browser for a sum of money.

The scammers abused the handling of pop-ups in Mobile Safari in such a way that a person would be "locked" out from using Safari unless they paid a fee -- or knew they could simply clear Safari's cache (see next section). The attack was contained within the app sandbox of the Safari browser; no exploit code was used in this campaign, unlike an advanced attack like Pegasus that breaks out of the app sandbox to install malware on the device.

The scammers registered domains and launched the attack from the domains they owned, such as police-pay[.]com, which the attackers apparently named with the intent of scaring users looking for certain types of material on the Internet into paying money.

The endless pop-up issue could be fixed by clearing the Safari cache, but many users likely did not know they didn't need to shell out money to regain access to their browsers.

Pop-up scams are no longer possible with iOS 10.3, as Apple has changed the way pop-up dialogs work. Pop-ups are now per-tab and no longer take over the entire Safari app.

Related Forum: iOS 10

Top Rated Comments

seanmcbay Avatar
93 months ago
Great news. These pop-up loops are the worst thing and they don't belong in 2017. Now Apple needs to prevent Safari ads from automatically taking you to the App Store for some crappy IAP fest game.
Score: 48 Votes (Like | Disagree)
man3ster Avatar
93 months ago
Finally, I can search for porn again.
Score: 19 Votes (Like | Disagree)
ApfelKuchen Avatar
93 months ago
I think it's all on apple to stop these scams and also refund anyone duped by them, because they've allowed a third party to effectively break the device and allow the scam to work.
"Allowed" how? Did they give the scammers instructions on how to "break" the device?

Good luck suing the makers of door locks or plate glass for "allowing" a burglar to pick the lock or break a window. Good luck suing the police for "allowing" the break-in. Good luck suing the telephone company for "allowing" a scammer to place a call, or the city for "allowing" a scammer to ring your doorbell. Failing to provide 100% safety is not the same as "allowing" a crime to occur.

The creators of these browser scams find weaknesses in the software. The developers of browsers plug the weaknesses. That's the same cat-and-mouse game you find anywhere there's crime.

Browsers are a particularly good target because, among other things, browsers are expected to correctly display web pages, regardless of who created that web page. Open Internet, and all that. You want a guarantee of 100% safety? Don't use the Internet.

I love the diversity around here. Some people complain that Apple's software allowed a scam to occur. Apple (presumably) attends to their needs by issuing software updates to combat the scams. Others are all up in arms, "How dare Apple force these updates upon us!"
Score: 8 Votes (Like | Disagree)
zzLZHzz Avatar
93 months ago
And I hope Apple can STOP the automatic update downloads.
Sometimes I run out of storage and Apple still sends the signal to download the iOS update.
as a developers, i hope they will continue with the automatic update.

the moment user have a choice in that, people will never update their OS and it just goes downhill from there.
Score: 7 Votes (Like | Disagree)
DBZmusicboy01 Avatar
93 months ago
And I hope Apple can STOP the automatic update downloads.
Sometimes I run out of storage and Apple still sends the signal to download the iOS update.
Score: 4 Votes (Like | Disagree)
wikiverse Avatar
93 months ago
There is a switch to stop app updates, but that doesn't include iOS itself? Unfortunate that Apple hasn't provided user control over that yet, but they do provide a way of deleting the downloaded update now.

https://www.igeeksblog.com/how-to-remove-software-update-download-from-iphone-ipad/
Except they force the download on you again as soon as you are connected to a Wifi Network, not only wasting space on your phone but wasting your download quotas on wifi - something extremely annoying and expensive if you live in a rural area, or are using hotel wifi. How about just having an opt-out option, or at least not immediately downloading it again if it is deleted.
Score: 4 Votes (Like | Disagree)

Popular Stories

iOS 18 Siri Integrated Feature

iOS 18 Rumored to Add These 10 New Features to Your iPhone

Wednesday April 24, 2024 2:05 pm PDT by
Apple is set to unveil iOS 18 during its WWDC keynote on June 10, so the software update is a little over six weeks away from being announced. Below, we recap rumored features and changes planned for the iPhone with iOS 18. iOS 18 will reportedly be the "biggest" update in the iPhone's history, with new ChatGPT-inspired generative AI features, a more customizable Home Screen, and much more....
Apple Silicon AI Optimized Feature Siri

Apple Releases Open Source AI Models That Run On-Device

Wednesday April 24, 2024 3:39 pm PDT by
Apple today released several open source large language models (LLMs) that are designed to run on-device rather than through cloud servers. Called OpenELM (Open-source Efficient Language Models), the LLMs are available on the Hugging Face Hub, a community for sharing AI code. As outlined in a white paper [PDF], there are eight total OpenELM models, four of which were pre-trained using the...
maxresdefault

Apple Announces 'Let Loose' Event on May 7 Amid Rumors of New iPads

Tuesday April 23, 2024 7:11 am PDT by
Apple has announced it will be holding a special event on Tuesday, May 7 at 7 a.m. Pacific Time (10 a.m. Eastern Time), with a live stream to be available on Apple.com and on YouTube as usual. The event invitation has a tagline of "Let Loose" and shows an artistic render of an Apple Pencil, suggesting that iPads will be a focus of the event. Subscribe to the MacRumors YouTube channel for more ...
apple id account

Apple ID Accounts Logging Out Users and Requiring Password Reset

Saturday April 27, 2024 12:41 am PDT by
There are widespread reports of Apple users being locked out of their Apple ID overnight for no apparent reason, requiring a password reset before they can log in again. Users say the sudden inexplicable Apple ID sign-out is occurring across multiple devices. When they attempt to sign in again they are locked out of their account and asked to reset their password in order to regain access. ...
macbook pro purple february

Best Buy Introduces Record Low Prices on Apple's M3 MacBook Pro for Members

Thursday April 25, 2024 7:41 am PDT by
Best Buy is discounting a collection of M3 MacBook Pro computers today, this time focusing on the 14-inch version of the laptop. Every deal in this sale requires you to have a My Best Buy Plus or Total membership, although non-members can still get solid second-best prices on these MacBook Pro models. Note: MacRumors is an affiliate partner with Best Buy. When you click a link and make a...
macos sonoma feature purple green

Apple's Regular Mac Base RAM Boosts Ended When Tim Cook Took Over

Friday April 26, 2024 6:34 am PDT by
Apple used to regularly increase the base memory of its Macs up until 2011, the same year Tim Cook was appointed CEO, charts posted on Mastodon by David Schaub show. Earlier this year, Schaub generated two charts: One showing the base memory capacities of Apple's all-in-one Macs from 1984 onwards, and a second depicting Apple's consumer laptop base RAM from 1999 onwards. Both charts were...