Shedun

Shedun is a family of malware software (also known as Kemoge, Shiftybug and Shuanet[1][2][3]) targeting the Android (operating system) first identified in late 2015 by mobile security company Lookout (company), affecting roughly 20,000[4] popular Android applications.[3][5][6][7][8][9] Lookout claimed the HummingBad malware was also a part of the Shedun family, however, these claims were refuted.[10][11]

Avira Protection Labs stated that Shedun family malware is detected to cause approximately 1500-2000 infections per day.[12] All three variants of the virus are known to share roughly ~80% of the same source code.[13][14]

In mid 2016, arstechnica reported that approximately 10.000.000 devices would be infected by this malware [15] and that new infections would still be surging.[16][17]

The malware's primary attack vector is repackaging legitimate Android applications (e.g. Facebook, Twitter, WhatsApp, Candy Crush, Google Now, Snapchat[18])[4][19][20] with adware included, the app which remains functional is then released to a third party app store;[21] once downloaded, the application generates revenue by serving ads (estimated to amount to $2 US per installation[20]), most users cannot get rid of the virus without getting a new device, as the only other way to get rid of the malware is to root affected devices and re-flash a custom ROM.[5][22][23]

In addition, Shedun-type malware has been detected pre-installed on 26 different types[24] of Chinese Android-based hardware such as Smartphones and Tablet computers.[25][26][27][28] [29][30][31][32][33][34][35][36][37][38][39]

Shedun-family malware is known for auto-rooting the Android OS [19][40] using well-known exploits like ExynosAbuse, Memexploit and Framaroot [41] (causing a potential privilege escalation[20][42][43])[44] and for serving trojanized adware and install themselves within the system partition of the operating system, so that not even a factory reset can remove the malware from infected devices.[45][46]

Shedun malware is known for targeting the Android Accessibility Service,[2][45][47][48][49][50][51] as well as for downloading and installing arbitrary applications[52] (usually adware) without permission,[3] it is classified as "aggressive adware" for installing potentially unwanted program [53][54][55] applications and serving ads.[56]

As of April 2016, Shedun malware is, by most security researchers, considered to be next to impossible to remove entirely.[57][58][59][60][61][62]

Avira Security researcher Pavel Ponomariov, specialized in Android malware detection tools, mobile threats detection and mobile malware detection automation research,[63] has published an in-depth analysis of the computer virus.[12]

See also

References

  1. ↑ by @HackTheW0r1d (2015-11-05). "Shuanet, ShiftyBug and Shedun malware could auto-root your Android – HackBails". Hackbails.wordpress.com. Retrieved 2016-10-02.
  2. 1 2 "Android Adware Abuses Accessibility Service to Install Apps". SecurityWeek.com. Retrieved 2016-04-20.
  3. 1 2 3 Manish Singh. "New Android Adware Can Download, Install Apps Without Permission: Report". NDTV Gadgets360.com.
  4. 1 2 "Three new malware strains infect 20k apps, impossible to wipe, only affect Android". AppleInsider Forums.
  5. 1 2 "Hackers reveal Android trojan malware that is IMPOSSIBLE to remove". Mail Online. 5 November 2015.
  6. ↑ Eran, Daniel (2015-11-05). "Three new malware strains infect 20k apps, impossible to wipe, only affect Android". Appleinsider.com. Retrieved 2016-10-02.
  7. ↑ "Android Malware On The Loose: Shuanet, ShiftyBug And Shedun Signatures Found On 20,000 Apps Outside Google Play Store". Droid Report.
  8. ↑ "Shedun Trojan goes solo". Darkmatters.
  9. ↑ "Popular Mobile Apps Repackaged with Trojans". Lavasoft. 2015-11-04. Retrieved 2016-10-02.
  10. ↑ "Another month, another new rooting malware family for Android". blog.elevenpaths.com. Retrieved 2016-10-09.
  11. ↑ "DIY Attribution, Classification, and In-depth Analysis of Mobile Malware". Check Point Blog. 2016-07-11. Retrieved 2016-10-09.
  12. 1 2 "Shedun: adware/malware family threatening your Android device". Avira Blog.
  13. ↑ "Neue Welle von Android-Malware lässt sich kaum mehr entfernen". Elektronikpraxis.vogel.de. Retrieved 2016-04-20.
  14. ↑ PMK Presse, Messe & Kongresse Verlags GmbH. "Gemeinsamkeiten: Shuanet, Shedun & ShiftyBug". Itseccity.de. Retrieved 2016-04-20.
  15. ↑ Dan Goodin - Jul 7, 2016 5:50 pm UTC (2016-07-07). "10 million Android phones infected by all-powerful auto-rooting apps". Ars Technica. Retrieved 2016-10-02.
  16. ↑ "Android Trojanized Adware 'Shedun' Infections Surge". Bankinfosecurity.com. 2016-07-08. Retrieved 2016-10-02.
  17. ↑ https://www.linkedin.com/pulse/android-trojanized-adware-shedun-infections-surge-mike-rogan
  18. ↑ "Android-Malware: Adware war gestern. Android-Trojaner auf dem Vormarsch.". botfrei Blog.
  19. 1 2 "New type of auto-rooting Android adware is nearly impossible to remove". Ars Technica.
  20. 1 2 3 Michael Mimoso. "Shuanet Adware Roots Android Devices - Threatpost - The first stop for security news". Threatpost - The first stop for security news.
  21. ↑ "Adware Shedun nistet sich gegen den Willen der Nutzer in Android ein". ITespresso.de.
  22. ↑ "Android Trojan Software Morphs Into Real Apps, Nearly Impossible To Remove From Device's System: Report". Yibada.
  23. ↑ "Android-Malware: Neue Schadsoftware rootet Geräte und ist kaum zu entfernen - Golem.de".
  24. ↑ Swati Khandelwal (3 September 2015). "26 Android Phone Models Shipped with Pre-Installed Spyware". The Hacker News.
  25. ↑ "G Data : Mobile Malware Report" (PDF). Public.gdatasoftware.com. Retrieved 2016-04-20.
  26. ↑ Catalin Cimpanu (4 September 2015). "24 Chinese Android Smartphone Models Come with Pre-Installed Malware". softpedia.
  27. ↑ David Gilbert. "Amazon Selling $40 Android Tablets That Come With Pre-Installed Malware". International Business Times.
  28. ↑ "Chinese smartphones infected with pre-installed malwareSecurity Affairs". Security Affairs.
  29. ↑ "Chinese Android smartphones now shipping with pre-installed malware". SC Magazine.
  30. ↑ Diane Samson. "Malware Found Pre-Installed on Xiaomi, Huawei, Lenovo Phones". iDigitalTimes.com.
  31. ↑ "Amazon's $40 Chinese Android Tablets Infected With Pre-Installed Malware". Design & Trend.
  32. ↑ Jeremy Kirk (5 March 2014). "Pre-installed malware found on new Android phones". Computerworld.
  33. ↑ "G Data : Mobile Malware Report" (PDF). Public.gdatasoftware.com. Retrieved 2016-04-20.
  34. ↑ Waqas. "Amazon Store, a safe haven for Android Tablets with pre-installed malware". HackRead.
  35. ↑ "Pre-Installed Android Malware Raises Security Risks in Supply Chain".
  36. ↑ "Some Android Phones Come With Malware Pre-Installed: Report". The Huffington Post.
  37. ↑ "Brand New Android Smartphones Coming with Spyware and Malware". WCCFtech.
  38. ↑ "Chinese Android smartphone comes with malware pre-installed". Graham Cluley.
  39. ↑ Martin Brinkmann (8 September 2015). "Beware, your Android phone might come with preloaded spyware". gHacks Technology News.
  40. ↑ "Trojan adware on Android can give itself root access". The Tech Report.
  41. ↑ "Shedun, Shuanet und Shiftybug: Android-Smartphone vor Malware schützen".
  42. ↑ "Android-Nutzer: Achtung vor Trojaner-Adware Shedun - Check & Secure -". - Check & Secure -.
  43. ↑ "New Android adware tries to root your phone so you can't remove it". ExtremeTech.
  44. ↑ "More than 20,000 apps auto-root Android devices". SC Magazine UK.
  45. 1 2 "Android's accessibility service grants god-mode p0wn power".
  46. ↑ "Trojanized adware family abuses accessibility service to install whatever apps it wants | Lookout Blog". Blog.lookout.com. 2015-11-19. Retrieved 2016-04-10.
  47. ↑ "Shedun trojan adware is hitting the Android Accessibility Service". Theinquirer.net. Retrieved 2016-04-20.
  48. ↑ "Shedun adware can install any malicious mobile appSecurity Affairs". Security Affairs.
  49. ↑ Shedun gaining accessibility service privileges. 18 November 2015 – via YouTube.
  50. ↑ Dennis Schirrmacher (20 November 2015). "Android-Malware: Werbeterror wie von Geisterhand". Security.
  51. ↑ "Der Adware – Trojaner Shedun". trojaner-info.de. 6 December 2015.
  52. ↑ Swati Khandelwal (20 November 2015). "This Malware Can Secretly Auto-Install any Android App to Your Phone". The Hacker News.
  53. ↑ "Trojaner-Adware installiert selbstständig ungewollte Android-Apps". Areamobile.de. Retrieved 2016-04-20.
  54. ↑ "Shedun: Neue Android-Adware installiert Apps ohne deine Einwilligung". Androidmag.
  55. ↑ John Woll. "Installation auch nach Ablehnung: Neue dreiste Android-Adware".
  56. ↑ "Android Shedun Malware: New Malware That Can Grant Access to Your Phone; Malware Impossible To Be Removed?". Yibada.
  57. ↑ "Gefährliche Android-Schadsoftware: Oft hilft nur neues Gerät". Noz.de. Retrieved 2016-04-20.
  58. ↑ "Shedun trojan adware is hitting the Android Accessibility Service". The Inquirer. 2015-11-20. Retrieved 2016-04-10.
  59. ↑ "Lookout discovers new trojanized adware; 20K popular apps caught in the crossfire | Lookout Blog". Blog.lookout.com. 2015-11-04. Retrieved 2016-04-10.
  60. ↑ "Shuanet, ShiftyBug and Shedun malware could auto-root your Android". Betanews.com. Retrieved 2016-04-10.
  61. ↑ "New Family Of Android Malware Virtually Impossible To Remove: Say Hello To Shedun, Shuanet And ShiftyBug : PERSONAL TECH". Tech Times. Retrieved 2016-04-10.
  62. ↑ Goodin, Dan (2015-11-19). "Android adware can install itself even when users explicitly reject it". Ars Technica. Retrieved 2016-04-10.
  63. ↑ "Pavel Ponomariov - Avira Blog". Avira Blog.
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