My signal app a week ago had 2 seperate, a few days apart, app updates from the app itself. Asking to check install from unknown sources to be checked inside the settings. Giving prompts from the notification drop down. Such as app update available. Click it, asked for setting to be checked, I checked it, it said it updated, all seems well and fine.
But doing this outside of both stores which usually update the app from say F droid or Aurora. I’ve never seen this happen ever. It wasn’t a user confirmation. It was a total app update.
Seems odd that the signal app itself asked to update itself from a notification from the drop down menu. How can I make sure it has not been compromised? Anyone else experienced something of the sort?
Android phone. Pixel. Gos.
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Signal is trying to make its APK auto updating. This way they don’t have to wait for approval from Google to apply patches that might affect security.
Signal is not distributed outside Play store and signal own website. If you downloaded from F-droid, its probably from Guardian repo.
If you download it from play store, signal will update through play store. If you download it from signal, it will update through itself. If you download it Guardian repo, it’s basically the same downloading from signal website, it will update it self.
The thing you can do is just basically turn off the update notification and just update it from guardian repo. Or just disable the guardian repo and let the signal update itself.
This sounds like the answer. The app updates from guardian repo. I will change the update path. Say the app had well something malicious injected would a new update flush the old app and in with the brand new?
My signal app tries to update itself. Installed from obtanium. It is a very irritating process, the thing tries to update, there is sometimes weird response times from clicking it (you click the notification and simply do not know if something is happening) and then without notice the thing restarts and then usually it works. But sometimes, the update notification still comes back. Because of that, I just update via obtanium
I had this happen. I clicked the notification many times nothing happened. Then eventually it did. It was odd. I just wanted to make sure everything was still intact.
If you trust the initial install then unless there is a warning about the signing key you are good. Only signal devs can sign the builds so if you installed the play store version then updated with their standalone apk or fdroid version then it should just work as the signing key is the same.
Guardian project are just publishing signals apk files as the signature matches.
Not native Signal but it happens with Signal forks that I install after adding repository to F-Droid, I have had a notification of a Signal update, even though I’m not using native Signal.
I disable that notification in the phone app settings and wait for an F-Droid notification of an update to install.
So you don’t think it’s something to be concerned about? I turned off install from unknown sources. App store F-Droid says it’s up to date.
I’m completely open to hearing why the Signal update notification is a concern. I don’t worry about it but you may know something that I am not seeing.
Not clear on where you installed it from…?
F droid store originally.
Signal isn’t on F-Droid out of the box, I don’t think, but it is in the Guardian repo and probably in a few others as well. I downloaded the Signal apk directly from their website, and that version does auto update and has for quite some time.
EDIT: if you’re worried about it, I suppose you could uninstall it and then download it from them directly (be sure to verify the certificate), after which it will prompt you to update it periodically from the app itself.
Even better, you could think about switching to Matrix.
I have the one installed from the Play Store, and it hasn’t done that.
Does seem odd doesn’t it. How could I verify the app is authentic and no malware or anything has accessed my phone?
There are virus scanners for Android - I have Bitdefender on mine - but I don’t know how effective they are. Back in the day they were a bit of a gimmick; I don’t know whether they’re better now.
I have seen other apps from F-Droid do this. NewPipe, I think, used to prompt me for updates even though I had installed it from F-Droid. But I was always a bit unsure so I tended to just go back to F-Droid to install newer versions. Maybe it’s a thing some apps do but I don’t know why they should need to and I don’t entirely trust it.
I have not had this happen. I just have the Play Store one.
It seems odd. Given recent news about various signal things. I’d rather ask than not.
My Signal auto updates via Obtainium. That is outside of a store. I think I remember the two updates your talking about.
It was 10 days ago for the last update, then the first one was a few days prior to that. Those two were the only two ever to have that happen.
I had the same at the same time. I ignored the app request and updated from app store
Phew. OK. Thanks. I’d rather post and ask then be ignorant. Still unsettling.
I had the same “that’s weird” reaction too. So not just you, would be good to know if it was kosher or a malware. I might have a dig now
Yes. I remember seeing the notifications. I then went to Obtainium and updated. What I do not know is if these were signal or obtainium notifications. It did seem odd at the time.
You should consider using Molly, a fork of Signal with Unified Push.
I’ve heard of Molly and read the repo. But I’m unsure how it would be more official and secure than the actual official app.
Why
Because, you won’t have to guess where to download the app. And you can get a completely FOSS version. And if not using google services, unified Push can help you with notifications.
So Android only, and not in the play store?
I have one device where I installed the APK straight from Signal themselves. That is the only device where it has updated itself.
My other devices all use the Play version through Aurora Store, and always updates through that.
Maybe there’s a config/setting somewhere?
But also, maybe don’t use F-Droid for apps regarding privacy.
https://privsec.dev/posts/android/f-droid-security-issues/
This article seems like a lot of FUD written from an anti-FOSS perspective. In their second point, they say that F-droid’s inclusion policy is “ridiculous” for requiring programs exclude proprietary software. I think the author is ridiculous for asking for this. This is what F-droid is for. I don’t want any proprietary apps or libraries on my phone. If developers only want to work on their proprietary software, they don’t get into F-droid. If they make a modified FOSS version and put it in F-droid, and let it bitrot and go unpatched when vulnerabilities are discovered, and F-droid issues a security advisory for that program, that’s not F-droid’s fault.
🚩🚩🚩
A blatant scam to backdoor our devices with software which fails to include a libre software license text file, software we do not control, anti-libre software.
I think about F droid and this aspect from time to time.