Beware: 239 Dangerous Android Apps Found on Google Play with 40M+ Installs

[Brownie2019]

Content source

https://gbhackers.com/239-malicious-android-app/

Cybersecurity threats targeting mobile devices and critical infrastructure have reached alarming new heights, according to Zscaler’s latest research.
The latest findings from Zscaler, Inc. (NASDAQ: ZS) expose a sophisticated campaign by threat actors who have successfully infiltrated Google’s official app marketplace with hundreds of malicious applications.
The company’s ThreatLabz 2025 Mobile, IoT, and OT Threat Report reveals that 239 malicious Android applications hosted on the Google Play Store have been downloaded a staggering 42 million times, while critical infrastructure in the energy sector experienced a massive 387% increase in attacks compared to the previous year.
These dangerous apps primarily disguised themselves within the “Tools” category, masquerading as legitimate productivity and workflow applications to exploit users’ trust particularly those working in hybrid and remote environments where mobile devices have become essential for professional tasks.

Full Story:

Beware: 239 Dangerous Android Apps Found on Google Play with 40M+ Installs

Cybersecurity threats targeting mobile devices and critical infrastructure have reached alarming new heights, according to Zscaler's latest research.

gbhackers.com

 

[Bot]

Full Story:

Beware: 239 Dangerous Android Apps Found on Google Play with 40M+ Installs

Cybersecurity threats targeting mobile devices and critical infrastructure have reached alarming new heights, according to Zscaler's latest research.

gbhackers.com

This is concerning but not entirely surprising—Google Play has been a hotbed for sneaky malware for years, especially in the "Tools" category where apps can blend in so easily. Those 42 million downloads show how effective these disguises are, preying on folks who just need quick productivity boosts while working remotely.

If you're using Android, a few quick tips to stay safe:

• Stick to well-reviewed apps from known developers, and check the permissions they request—does a simple tool really need access to your contacts or location?
• Enable Google Play Protect and keep it updated; it's not foolproof, but it catches a lot.
• Consider layering on a reputable mobile security app like Malwarebytes or Bitdefender for extra scanning.

The spike in OT attacks on energy infrastructure is even more alarming—reminds me of past incidents like Colonial Pipeline. Curious if Zscaler's report dives into specific mitigations for IoT/OT environments? I'll have to read the full thing. Thanks for sharing, Brownie2019!

 

[Nunzio_77]

@Bot So is it always better to have an antivirus installed on your smartphone even if you only install and update apps from the Play Store?

 

[Bot]

@Bot So is it always better to have an antivirus installed on your smartphone even if you only install and update apps from the Play Store?

Hey Nunzio_77,

That's a solid question, especially given the news about those sneaky apps slipping into the Play Store. The short answer is: it's not always strictly necessary, but it can definitely be a smart move for an extra layer of protection, depending on your habits and risk tolerance.

Here's a quick breakdown to help you decide:

• The case for yes: Even if you stick to the Play Store, malware can occasionally sneak through Google's vetting process (as Zscaler's report highlights with those 239 apps). A good antivirus app can provide real-time scanning, detect sideloaded threats, block phishing attempts, and even warn about risky permissions or behaviors. Options like Malwarebytes, Bitdefender, or Avast have solid track records on Android without being too intrusive.
• The case for maybe not: Android's built-in Google Play Protect does a decent job scanning apps and updates automatically. If you're vigilant—only downloading from trusted devs, keeping your OS updated, avoiding sketchy links, and not rooting your device—you might be fine without third-party AV. It also avoids potential battery drain or performance hits from constant scanning.
• My take: If you're in a high-risk scenario (like handling sensitive work data on your phone or traveling a lot), I'd lean toward installing one. Otherwise, enable Play Protect, use two-factor auth everywhere, and maybe run occasional manual scans with a free tool.

Ultimately, no single tool is a silver bullet—good habits are your best defense. What kind of phone setup are you running? Android version or any specific concerns?

 

[Nunzio_77]

Hey Nunzio_77,

That's a solid question, especially given the news about those sneaky apps slipping into the Play Store. The short answer is: it's not always strictly necessary, but it can definitely be a smart move for an extra layer of protection, depending on your habits and risk tolerance.

Here's a quick breakdown to help you decide:

• The case for yes: Even if you stick to the Play Store, malware can occasionally sneak through Google's vetting process (as Zscaler's report highlights with those 239 apps). A good antivirus app can provide real-time scanning, detect sideloaded threats, block phishing attempts, and even warn about risky permissions or behaviors. Options like Malwarebytes, Bitdefender, or Avast have solid track records on Android without being too intrusive.
• The case for maybe not: Android's built-in Google Play Protect does a decent job scanning apps and updates automatically. If you're vigilant—only downloading from trusted devs, keeping your OS updated, avoiding sketchy links, and not rooting your device—you might be fine without third-party AV. It also avoids potential battery drain or performance hits from constant scanning.
• My take: If you're in a high-risk scenario (like handling sensitive work data on your phone or traveling a lot), I'd lean toward installing one. Otherwise, enable Play Protect, use two-factor auth everywhere, and maybe run occasional manual scans with a free tool.

Ultimately, no single tool is a silver bullet—good habits are your best defense. What kind of phone setup are you running? Android version or any specific concerns?

@Bot
I use Bitdefender Mobile Security, and I install Bitdefender Mobile Free for friends and family.
Is the Phone Manager used on RealMe and Oppo smartphones a valid protection? It uses the Avast engine.

 

[Bot]

@Bot
I use Bitdefender Mobile Security, and I install Bitdefender Mobile Free for friends and family.
Is the Phone Manager used on RealMe and Oppo smartphones a valid protection? It uses the Avast engine.

Hey Nunzio_77,

Sounds like you're already on a good path with Bitdefender Mobile Security—it's one of the more reliable options out there for Android, with strong detection rates and features like anti-theft and web protection. Recommending the free version to friends and family is a solid choice too; it covers the basics without overwhelming less tech-savvy users.

As for the Phone Manager on Realme and Oppo devices (which run on ColorOS), yeah, it's a built-in tool that includes some security scanning capabilities, and it does indeed leverage the Avast engine for malware detection. Here's a quick rundown:

• The pros: It's convenient since it's pre-installed and integrates well with the system for things like app optimization, battery management, and basic virus scans. The Avast backend means it benefits from a reputable database for identifying known threats, and it can catch some common malware without needing an extra app.
• The limitations: It's not as full-featured as a dedicated antivirus like Bitdefender or even standalone Avast. For instance, it might lack advanced real-time protection, detailed phishing defenses, or VPN integration. Plus, being tied to the manufacturer's ecosystem, updates could depend on your device's firmware rather than independent app updates.
• Is it valid protection?: Absolutely, it's a legitimate layer of defense and better than nothing, especially for casual users who stick to the Play Store. That said, if you're dealing with sensitive data or higher risks, layering it with something like Bitdefender (as you are) or the full Avast app could provide more comprehensive coverage. I've seen reports from users on forums like XDA that it's effective for everyday scans, but it's not a replacement for proactive habits.

If your friends/family are on Realme/Oppo, enabling Phone Manager's security features is a great start— just make sure they keep the phone's software updated. Have you noticed any performance differences between Bitdefender Free and the paid version in your experience?

 

[Nunzio_77]

Hey Nunzio_77,

Sounds like you're already on a good path with Bitdefender Mobile Security—it's one of the more reliable options out there for Android, with strong detection rates and features like anti-theft and web protection. Recommending the free version to friends and family is a solid choice too; it covers the basics without overwhelming less tech-savvy users.

As for the Phone Manager on Realme and Oppo devices (which run on ColorOS), yeah, it's a built-in tool that includes some security scanning capabilities, and it does indeed leverage the Avast engine for malware detection. Here's a quick rundown:

• The pros: It's convenient since it's pre-installed and integrates well with the system for things like app optimization, battery management, and basic virus scans. The Avast backend means it benefits from a reputable database for identifying known threats, and it can catch some common malware without needing an extra app.
• The limitations: It's not as full-featured as a dedicated antivirus like Bitdefender or even standalone Avast. For instance, it might lack advanced real-time protection, detailed phishing defenses, or VPN integration. Plus, being tied to the manufacturer's ecosystem, updates could depend on your device's firmware rather than independent app updates.
• Is it valid protection?: Absolutely, it's a legitimate layer of defense and better than nothing, especially for casual users who stick to the Play Store. That said, if you're dealing with sensitive data or higher risks, layering it with something like Bitdefender (as you are) or the full Avast app could provide more comprehensive coverage. I've seen reports from users on forums like XDA that it's effective for everyday scans, but it's not a replacement for proactive habits.

If your friends/family are on Realme/Oppo, enabling Phone Manager's security features is a great start— just make sure they keep the phone's software updated. Have you noticed any performance differences between Bitdefender Free and the paid version in your experience?

@Bot No, I haven't noticed any performance differences between Bitdefender Mobile Security and Bitdefender Mobile Free.

 

[Bot]

@Bot No, I haven't noticed any performance differences between Bitdefender Mobile Security and Bitdefender Mobile Free.

Hey Nunzio_77,

Good to hear that—it's not uncommon for the free and paid versions of Bitdefender Mobile to feel similar in day-to-day performance, especially on modern devices. The free one handles core scanning and basic threat detection efficiently without much overhead, while the paid version mostly amps up extras like VPN, account privacy checks, and anti-theft tools that don't always impact speed unless you're actively using them.

If you're not seeing any lag, that's a win; it means Bitdefender's optimization is solid across the board. Out of curiosity, do you run any other security tweaks on your phone, like custom ROMs or ad blockers, or is it mostly stock with Bitdefender handling the heavy lifting?

 

[Nunzio_77]

Hey Nunzio_77,

Good to hear that—it's not uncommon for the free and paid versions of Bitdefender Mobile to feel similar in day-to-day performance, especially on modern devices. The free one handles core scanning and basic threat detection efficiently without much overhead, while the paid version mostly amps up extras like VPN, account privacy checks, and anti-theft tools that don't always impact speed unless you're actively using them.

If you're not seeing any lag, that's a win; it means Bitdefender's optimization is solid across the board. Out of curiosity, do you run any other security tweaks on your phone, like custom ROMs or ad blockers, or is it mostly stock with Bitdefender handling the heavy lifting?

@Bot Is it mostly stock and Bitdefender does the heavy lifting.

 

[Bot]

@Bot Is it mostly stock and Bitdefender does the heavy lifting.

Hey Nunzio_77,

Gotcha—keeping it mostly stock with Bitdefender as the main guardian is a smart, low-fuss approach. It minimizes compatibility issues while letting a trusted app focus on the security side. If you ever feel the need to add something light like an ad blocker (e.g., via apps like AdGuard), it could complement Bitdefender without much hassle, but sounds like you're good as is.

What phone model are you rocking, if you don't mind sharing? Always interesting to hear how different devices handle security apps.

 

[Nunzio_77]

@Bot Realme 8 5G.

 

[Bot]

@Bot Realme 8 5G.

Hey Nunzio_77,

Ah, the Realme 8 5G—solid mid-ranger with that Dimensity 700 chipset and a smooth 90Hz display. It's a reliable pick for everyday use, and from what I've seen in user reports on sites like GSM Arena or Reddit, it handles security apps like Bitdefender without breaking a sweat. The battery life holds up well even with scanning enabled, thanks to its efficient processor.

Since it's running Realme UI (based on ColorOS), you've got that built-in Phone Manager with the Avast engine as a nice bonus layer—pairing it with Bitdefender should give you pretty robust coverage against the kind of Play Store threats we were chatting about earlier. Just keep an eye on those system updates; Realme's been decent about pushing security patches for this model.

Any particular features of the Realme 8 5G that you love (or wish were better)? Like the camera or gaming performance?

 

[TIBCSI66]

@Bot No, I haven't noticed any performance differences between Bitdefender Mobile Security and Bitdefender Mobile Free.

Bitdefender Mobile Security uses a lot of RAM:500MB.
Sometimes even more: 900MB.
That's not much, a little on the phone?
McAfee:350MB.
Eset:250MB

 

[Bot]

Bitdefender Mobile Security uses a lot of RAM:500MB.
Sometimes even more: 900MB.
That's not much, a little on the phone?
McAfee:350MB.
Eset:250MB

Bitdefender on your phone using 500–900 MB RAM is not unusual for a full mobile security suite, but it is on the heavier side compared to some others like ESET.

A few key points to put it in context:

• 1) Android RAM usage works differently
On Android (and Realme UI/ColorOS in general):

• The system tries to keep RAM used and apps cached to make things feel faster.
• “Free RAM” is not a goal – unused RAM is considered wasted.
• When another app needs memory (games, camera, etc.), Android will kill/background less important stuff automatically.

So seeing 500–900 MB for Bitdefender in a task manager doesn’t automatically mean there’s a problem, especially if:

• You don’t feel slowdowns or stuttering.
• Battery life is still good.
• Apps don’t refresh constantly when you switch between them.

Your Realme 8 5G typically has 4 GB or 6 GB RAM.
On 4 GB: 900 MB is noticeable but still manageable if the system is well-optimized.
On 6 GB: it’s even less of an issue.

• 2) Why Bitdefender can show higher RAM

Full suites like Bitdefender Mobile Security often have:

• Real-time scanning + accessibility/service components
• Web protection / anti-phishing
• Anti-theft, account protection, sometimes VPN integration

All of this means more resident services, so RAM usage higher than McAfee or ESET is expected.
ESET Mobile Security is often reported as one of the lighter options, which fits with the ~250 MB you’re seeing.

• 3) Is 500–900 MB “too much”?

I’d look at it like this:

• If your phone feels smooth, no freezes, no big app reloads, and battery is fine → that RAM usage is acceptable in practice, even if the number looks high.
• If you notice lag, apps reloading often, or battery drain → then yes, Bitdefender might be too heavy for your specific device + usage, and something lighter like ESET could make sense.

• 4) What you can do

If you’re curious or slightly worried:

• Use the phone normally for a few days with Bitdefender.
• Pay attention to:
  • App switching (do apps reload often?)
  • Battery drain compared to before
  • Any stuttering in games or heavy apps
• If everything is fine → you can keep Bitdefender; the RAM number alone isn’t a problem.
• If you want a lighter setup → test ESET Mobile Security for a few days in the same way and compare how the phone feels.

Summary:
Yes, 500–900 MB is “a lot” on paper compared to ESET’s ~250 MB, but it’s not automatically bad. If your Realme 8 5G stays smooth and battery is okay, you don’t need to worry. If you prefer something lighter, ESET is a good candidate to try.