OpFake is a family of virus that act as a downloader in Opera browser, an alternative to Google Chrome browser for android. The virus author monitor it silently for sending premium rate messages. The virus was found last year and start attacking to android mobiles and then OpFake developer code it for Symbian and jail break iPhones.

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• Download Trojan Virus Maker For Android Windows 7
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Malware researchers frequently seek malware samples to analyze threat techniques and develop defenses. In addition to downloading samples from known malicious URLs, researchers can obtain malware samples from the following free sources:

• Android trojan free download. Track -1-Generator-2017 Simple apk file for android that automatically generates track 1 from track 2. Created may 2017 Ma.
• Malware researchers frequently seek malware samples to analyze threat techniques and develop defenses. In addition to downloading samples from known malicious URLs, researchers can obtain malware samp.
• Anti-malware all the time. Malwarebytes Anti-Malware is here to protect your Android device from viruses and other malware that you may accidentally install. Google Play Store has an enormous collection of uncontrolled applications that could be carrying malware or viruses.
• Trojan Scanner is a tool from GRIDINSOFT LLC to protect your Android-phone from malware. Trojan Scanner is a reincarnation of Trojan Killer for mobile users. In case of infection of your PC and memory sticks, Trojan Killer will effectively eliminate all threats. Trojan Scanner Android Edition is intended for scanning a mobile device on Android and cleaning it from Trojans, viruses, malicious.

• ANY.RUN: Registration required
• Contagio Malware Dump: Curated, password required
• Hatching Triage: Registration required
• Hybrid Analysis: Registration required
• InQuest Malware Samples on GitHub
• KernelMode.info: Registration required
• MalShare: Registration required
• MalwareSamples Malware-Feed: Curated
• Objective-See Collection: Mac malware
• PacketTotal: Malware inside downloadable PCAP files
• PhishingKitTracker: Phishing sites source code
• PolySwarm: Registration required
• SNDBOX: Registration required
• SoReL-20M: 10M defanged malware samples (see notes)
• theZoo aka Malware DB
• URLhaus: Links to live sites hosting malware
• VirusBay: Registration required
• VirusShare: Registration required
• VirusSign: Registration required
• Virus and Malware Samples: Includes APT, registration required
• Yomi: Registration required

Be careful not to infect yourself when accessing and experimenting with malicious software.

My other lists of online security resources outline Automated Malware Analysis Services and On-Line Tools for Malicious Website Lookups. Also, take a look at tips sharing malware samples with other researchers.

It seems that every few weeks a new crop of malicious Android apps turns up in the market. Sometimes Google just removes them from the market; other times it uses the 'kill switch' to disable already-downloaded apps from Android devices around the world.

Typically these threats are perfectly ordinary-looking apps. Like the Trojan Horse of legend, they enter your device freely, with your permission. Once installed they do something nasty. Some users are shocked that Google can remove stuff from your Android phone remotely. I'm more alarmed at the ridiculous ease with which malicious coders can create Trojans for Android.

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At last week's Next@Norton event, Symantec researchers presented a dazzling array of information about the current state of mobile security and the mobile malware landscape. Eric Chien, Technical Director for Security Response, revealed the absurdly simple steps a malefactor uses to create a brand-new Trojan by creating one right in front of the audience. Don't worry; his sample app never left the room.

Here are the five simple steps Chien demonstrated:

One. Start by downloading a free app. You can choose any app at all, but of course you'll want to pick something that will draw plenty of downloads.

Two. The language compilers that create applications on your PC take textual source code and convert it into assembly language that the CPU can read and process. It's a one-way translation; there's no way to go from the final executable file back to the source code. Android apps are written in Java, though, and that means that you can decompile them back to the original source code using simple, easily-available tools. For the next step, decompile your target app.

Three. The third step is a little tricky. You'll need to obtain Java source code that does something nasty, like sending personal information from the device to a third party. For the demonstration, Chien used a known threat called Android.Geinimi.

Four. Adding the Trojan code is absurdly simple. You copy it into the folder containing the existing source code, make a small change in the manifest to run the Trojan code before the rest of the app, and edit the permissions to give the Trojanized app free access to the entire device. While you're at it, tweak the app's name. Chien added 'FREE!' to the name for his demo.

Five. Compile the modified app and upload it to the market. You're done!

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Of course, malicious apps don't last long in the Android Market. If you really want to spread a dangerous program, you're better off uploading it in China, where there is no official Android market. In fact, virtually all of the examples referenced in Chien's presentation surfaced in the free-for-all markets of China.

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Not planning to do this yourself? Good! But I'm sure that like me you're shocked at how easily someone with bad intentions can create a brand new Android Trojan. It's time to look into mobile security for your Android device.