Password-Stealing Instagram App 'InstaAgent' Reappears in App Store Under New Name

Last November, a malicious app called InstaAgent was caught storing the usernames and passwords of Instagram users, sending them to a suspicious remote server. After the app's activities came to light, Apple removed it from the App Store, but it now appears Turker Bayram, the developer behind the app has managed to get two new apps approved by Apple, (and Google) both of which are stealing Instagram account info.

Peppersoft developer David L-R, who discovered the insidious password-sniffing feature in the first InstaAgent app, last week wrote a post outlining new password stealing apps created by Bayram. Called "Who Cares With Me - InstaDetector" and "InstaCare - Who Cares With Me," the apps are available on Android and iOS devices.

instacare
The original InstaAgent app attracted Instagram users by promising to track the people who visited their Instagram account, and the two new apps make similar promises. Both apps say they display a list of users who interact most often with an Instagram account, asking users to log in with an Instagram username and password.

David L-R investigated Bayram's new apps and discovered a suspicious HTTPS packet, leading him to uncover a complex encryption process used to covertly send usernames and passwords to a third-party server and hide the evidence. He found both the Android and iOS versions of the app send Instagram account information to unknown servers.

As I had a closer look to the iOS app I found out that the app steals the Instagram password & username to send it encrypted to "unknown" servers. The "password-stealing" algorithm and the encryption seems to be the same as in "InstaCare - Who cares with me?" a new iOS app from the "InstaAgent" developer, which malicious behaviour I discovered a few days ago. A working PoC (Proof of concept for the iOS version) can be found here.

Multiple reviews on the iOS App Store claim that after using the malicious Instagram apps, their accounts were compromised with spam photos advertising the app that were uploaded to their feeds. As with InstaAgent, the apps show up prominently in the Top Charts in some countries, though not in the United States.

appstorereviews
Bayram's ability to get multiple new apps approved by Apple after having been found guilty of harvesting Instagram account information speaks towards the glaring issues in Apple's app review policies. It is unclear how a developer who was caught operating a malicious app was able to get additional apps past Apple's radar.

There are dozens if not hundreds of low-quality third-party apps that promise to provide Instagram users with followers and other perks, which should be avoided to avoid having account information stolen. Instagram cautions against installing third-party apps that don't follow its Community Guidelines and says such apps are "likely attempts to use your account in an inappropriate way."

(Thanks, Şizofrenik!)

Top Rated Comments

(View all)
Avatar
57 months ago
Why doesn't Apple pursue criminal charges against these "developers"?
Score: 23 Votes (Like | Disagree)
Avatar
57 months ago
Revoke their accounts and certificates.
Score: 20 Votes (Like | Disagree)
Avatar
57 months ago
How the hell did Apple approve these Apps knowing what they did about Bayram?
Score: 14 Votes (Like | Disagree)
Avatar
57 months ago
Fool Apple once - shame on them
Fool Apple twice - shame on Apple for not sending them to the white room prison the first time
Score: 11 Votes (Like | Disagree)
Avatar
57 months ago
I can see the app review process being a daunting one given the volume Apple sees in App Store but it is disturbing that this type of thing gets through once let alone repeatedly.
Score: 10 Votes (Like | Disagree)
Avatar
57 months ago
Honestly, I think there's starting to be a lack of quality control from Apple. Not trying to scold them or anything, but it's been multiple times in fairly short intervals that a malicious app like this appeared on the store.
Score: 10 Votes (Like | Disagree)

Top Stories

Apple-Acquired Dark Sky Officially Shuts Down Android App

Saturday August 1, 2020 3:43 pm PDT by
Apple in March purchased weather app Dark Sky, and at that time, Dark Sky's developers said that the app's Android version would be discontinued on July 1, 2020. However, instead of shuttering the app on that date, the app's developers announced that the discontinuation would be delayed for another month. Now that it's August, Android users are no longer able to access the app, and...

Apple May Launch This Year's 'iPhone 12' Lineup in Two Stages, With 6.1-inch Models Debuting First

Monday August 3, 2020 3:14 am PDT by
Apple last week confirmed that its "‌iPhone‌ 12" launch will be delayed this year due to the ongoing global health crisis and restrictions on travel. Apple last year started selling iPhones in late September, but this year, Apple projects supply will be "available a few weeks later," suggesting a release sometime in October. We're expecting a total of four OLED iPhones in 5.4, 6.1, and...

Apple Announces New 27-Inch iMac With 10th-Gen Processors, Up to 128GB RAM, 1080p Webcam, True Tone, and More

Tuesday August 4, 2020 8:07 am PDT by
Apple today announced a new 27-inch iMac with faster 10th-generation Intel Core processor options, next-generation AMD graphics, up to 128GB of RAM, a higher-resolution 1080p front-facing FaceTime camera, a True Tone display with a nano-texture glass option, a T2 chip, higher fidelity speakers, studio-quality microphones, and more. A breakdown of the new 27-inch iMac's features and specs:10th...

Apple Explains Why You Might See 'Not Charging' When a Mac is Plugged In

Monday August 3, 2020 1:42 pm PDT by
If you have a Mac and have seen a "Not Charging" warning when plugging it in to power, Apple last week released a support document that explains why. Macs running macOS 10.15.5 or later have a Battery Health Management feature to preserve the life of the battery, and occasionally, the Battery Health Management option will cause the Mac to pause its charging for calibration purposes.Depending ...

Top Stories: Try the 5.4-Inch iPhone 12 Display Size, Blockbuster Earnings, Tim Cook at Antitrust Hearing

Saturday August 1, 2020 6:00 am PDT by
Another busy week of Apple news and rumors has wrapped up, with a lot of focus on Tim Cook's appearance at a Congressional antitrust hearing and a blockbuster earnings report. Subscribe to the MacRumors YouTube channel for more videos. We continued to hear rumors about the upcoming iPhone 12 lineup, including a rare admission from Apple that the lineup will launch "a few weeks later" than...

Unreleased iPod Touch with Mac Pro Glossy Black Finish Shared Online

Sunday August 2, 2020 11:32 am PDT by
Twitter user @DongleBookPro has today posted images of what seems to be a first-generation iPod Touch prototype with a 2013 Mac Pro-style glossy black finish. The Twitter user claims that the iPod Touch prototype pictured has "the same coating as the 2013 Mac Pro." Had the finish been selected for the final product, it also would have been similar to the metallic glossy black finish that...

Just How Small Will the 5.4-Inch iPhone 12 Screen Be? Try It Out for Yourself

Tuesday July 28, 2020 12:57 pm PDT by
As rumors of the iPhone 12 have continued to build over the past few months, the one model that has the most excitement around it is the smallest 5.4" model. The iPhone 12 is believed to be coming in 5.4", 6.7", and 6.1" sizes. Dummy models have shown how much smaller the 5.4" is compared to the rest of the iPhone lineup. The upcoming 5.4" iPhone falls in-between the size of the original...

Everything New in iOS 14 Beta 4: Apple TV Widget, Search Improvements, Exposure Notification API and More

Tuesday August 4, 2020 11:14 am PDT by
Apple today released the fourth developer betas of iOS and iPadOS 14 for testing purposes, tweaking and refining some of the features and design changes included in the update. Changes get smaller and less notable as the beta testing period goes on, but there are still some noteworthy new features in the fourth beta, which we've highlighted below. - Apple TV widget - There's a new Apple TV...

Microsoft to Stop Supporting Office 2016 for Mac in October

Monday August 3, 2020 12:21 pm PDT by
Microsoft's Office 2016 for Mac is set to reach its end of support date on October 13, 2020, and after that date, connecting to Office 365 services using the Office 2016 for Mac software will no longer be supported. Microsoft shared the detail in a support document from July highlighting which versions of Office will be supported for connecting to Office 365 services in the future.Connecting ...

Apple Shares Requirements for Default Third-Party Browser and Email Apps With Developers

Monday August 3, 2020 4:28 pm PDT by
Apple in iOS 14 plans to allow users to set a third-party app as the default email or browser app on an iPhone or iPad, replacing the current Apple-made default apps Safari and Mail. Apple hasn't provided many details on the new feature to users, but as noted by MacStories' Federico Vittici, Apple has shared documentation with developers who want their apps to have the option to be set as a...