BatSaver Android Malvertising Spyware

BatSaver is a newly observed malvertising and spyware trojan targeting Android devices.

Threat ID:: CC-2513
Category:: Trojan, Spyware
Threat Severity:: Low
Threat Vector:: Download
Published:: 27 June 2018 12:00 AM

Report a cyber attack: call 0300 303 5222 or email [email protected]

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Summary

BatSaver is a newly observed malvertising and spyware trojan targeting Android devices.

Affected platforms

The following platforms are known to be affected:

Android

Google Android - All versions

Threat details

It is delivered disguised as a battery saving application users download from the Google Play Store or from third-party sites. Once installed it requests full permissions from the user before ostensibly acting as intended. However, it will also attempt to collect log and user data, receive SMS messages and modify system settings.

The malware also includes an ad-clicking backdoor that connects to a separate command and control server to receive new domains. Malicious adverts are displayed to the user when the use the device's default browser.

Remediation advice

Additionally, to prevent and detect an infection ensure that:

Remediation steps

Type	Step
	Users should only download applications that are necessary for their role. Organisations should consider implementing application whitelisiting on mobile devices. A robust program of education and awareness training is delivered to users to ensure they don’t open attachments or follow links within unsolicited emails. All operating systems, anti-virus and other security products are kept up-to-date. All day-to-day computer activities such as email and internet are performed using non-administrative accounts. Strong password policies are in place. Network, proxy and firewall logs should be monitored for suspicious activity. User accounts accessed from affected devices should be reset on a clean computer. Your organisation adopts a holistic all-round approach to Cyber Security as advocated by the 10 Steps to Cyber Security.

Type

Step

Users should only download applications that are necessary for their role.
Organisations should consider implementing application whitelisiting on mobile devices.

A robust program of education and awareness training is delivered to users to ensure they don’t open attachments or follow links within unsolicited emails.
All operating systems, anti-virus and other security products are kept up-to-date.
All day-to-day computer activities such as email and internet are performed using non-administrative accounts.
Strong password policies are in place.
Network, proxy and firewall logs should be monitored for suspicious activity.
User accounts accessed from affected devices should be reset on a clean computer.
Your organisation adopts a holistic all-round approach to Cyber Security as advocated by the 10 Steps to Cyber Security.

Last edited: 17 February 2020 12:38 pm