As smartphones have become an increasingly essential part of modern life, so too has the threat of malware. Fleckpe is the latest example of sneaky software designed to harm unsuspecting users. Disguised as a variety of photo editing and camera apps, Fleckpe has amassed over 620,000 downloads in total since its first appearance on the Google Play Store in 2022. Despite being identified and reported by cybersecurity experts, the malware remains a danger to those who may not exercise caution when downloading apps.
Fleckpe’s Disguise
Like many Android malware before it, Fleckpe disguises itself as legitimate apps with features users may want to have on their smartphones. Specifically, it pretends to be photo editing apps, camera, and smartphone wallpaper packs. These apps offer promised functionality to avoid raising red flags, but conceal their real purpose under the hood. Users who install these apps may not be aware that they have exposed themselves to the malware’s insidious programming.
Targeting and Victims
The operation primarily targets users from Thailand, specifically the Thai-speaking population. However, telemetry data gathered by the cybersecurity firm Kaspersky has revealed victims in Poland, Malaysia, Indonesia, and Singapore. This shows that Fleckpe is not limited to the initial target population and highlights the need for greater awareness of the potential threat.
Fleckpe’s Payload
Once Fleckpe is installed on a user’s device, it contacts a remote server and transmits information about the compromised device. This can include sensitive personal information such as contacts, messages, location data, and more. This information is then used to manipulate the user further, such as subscribing them to unwanted services, resulting in unauthorized charges or giving the malware’s operators an entry point into other areas of a user’s device.
Abusing Permissions
To subscribe users to unwanted services, Fleckpe abuses its permissions to access notifications and obtain the confirmation code required to complete the process. This abuse means that even if a user has given the app permission to access certain areas of their device, they may not realize that the app is using those permissions for malicious purposes.
In a sign that Fleckpe is still being actively developed, recent versions of the malware have moved most of the malicious functionality to the native library in a bid to evade detection by security tools. This makes it harder for security experts to find and report on the malware, increasing the danger for unsuspecting users downloading seemingly legitimate apps.
The Danger of Fleckpe
Although not as immediately dangerous as malware designed for spying or financial theft, Fleckpe can still incur unauthorized charges and be repurposed by its operators to harvest a wide range of sensitive information. This kind of data can then be used for identity theft, fraud, or other harmful purposes.
Users must exercise caution. The findings of Fleckpe are yet another indication that threat actors are continuing to discover new ways to sneak their apps onto official app marketplaces to scale their campaigns, requiring that users be cautious when downloading apps and granting permissions to them. The growing complexity of Trojans has allowed them to successfully bypass many anti-malware checks implemented by the marketplaces, remaining undetected for long periods of time.
As Fleckpe and other malware continue to evolve and grow in complexity, it highlights the need for enhanced security measures. App marketplaces must remain vigilant in detecting and removing malware like this, while users must be educated on the potential risks of downloading apps from untrusted sources. Greater awareness and adoption of security measures can help keep users safe while allowing them to continue enjoying the benefits of modern technology.
