Threat intelligence
Zapium Ransomware increases pressure to pay up!
The SonicWall Capture Labs Threat Research Team have observed a variant of the Jigsaw Ransomware trojan in the wild called Zapium. Like most ransomware there is a time limit after which files are permanently lost. We have observed the Jigsaw ransomware as having a limit of around one hour. However, Zapium will delete one file every 5 minutes thus increasing the pressure to act!
Infection Cycle:
Upon execution the Trojan encrypts files on the system then displays the following message:
- %AppData%LocalDrpbxdrpbx.exe
- %AppData%RoamingFrfxfirefox.exe
- %AppData%RoamingSystem32WorkAddress.txt (bitcoin address to send payment to)
- %AppData%RoamingSystem32Workdr (contains text: "21")
- %AppData%RoamingSystem32WorkEncryptedFileList.txt (list of files encrypted)
The Trojan adds the following keys to the registry:
- HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun firefox.exe "%AppData%RoamingFrfxfirefox.exe"
The UI contains an option to view a list of encrypted files and also files that have been permanently deleted:
The binary contains the following list of bitcoin addresses:
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 UI also has a "Check Payments" button which can be used to determine if payment has been made after which files will be decrypted. It contacts btc.clockr.io which points to www.coinbase.com:
SonicWALL Gateway AntiVirus provides protection against this threat via the following signature:
- GAV: Zapium.RSM (Trojan)
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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.