Spygold trojan found in rogue android application (Aug 3, 2011)


SonicWALL UTM Research team received reports of a rogue android gaming application spreading in the wild. The rogue application is a modified version of a legitimate game available on the android market. The modified application was found spying on call logs and text messages. SonicWALL advices users against installing applications from untrusted sources and to be wary of applications that request for suspicious permissions.

When the rogue application is downloaded and executed, it requests for the following permissions:


It performs the following activities when installed:

  • It stores calls logs and text message periodically to the following locations
  • The contents of the files storing call logs and text messages are shown below:
    • zjphonecall.txt:


    • zjsms.txt:


  • It ensures service is started on reboot of the phone
  • It scrounges device information
    • Grabs IMEI, IMSI and SIM number
  • It uploads collected data to a remote server
    • http://{removed}.net/zj/upload/UploadFiles.aspx

SonicWALL Gateway AntiVirus provides protection against this threat with the following signature:

  • GAV: AndroidOS.spygold (Trojan)
  • Security News
    The SonicWall Capture Labs Threat Research Team gathers, analyzes and vets cross-vector threat information from the SonicWall Capture Threat network, consisting of global devices and resources, including more than 1 million security sensors in nearly 200 countries and territories. The research team identifies, analyzes, and mitigates critical vulnerabilities and malware daily through in-depth research, which drives protection for all SonicWall customers. In addition to safeguarding networks globally, the research team supports the larger threat intelligence community by releasing weekly deep technical analyses of the most critical threats to small businesses, providing critical knowledge that defenders need to protect their networks.