Trojan:SymbOS/Singlejump.B

Classification

Category :

Malware

Type :

Trojan

Platform :

SymbOS

Aliases :

Trojan:SymbOS/Singlejump.B

Summary

Trojan:SymbOS/Singlejump.B disables most well-known third party file managers and Anti-Virus software.

Removal

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

Trojan:SymbOS/Singlejump.B is distributed in a malicious SIS file named 'Metal_gear.sis'.

Singlejump.B was formerly named Trojan:SymbOS/Onehop.B, but was renamed to Singlejump.B for more accurate classification.

Execution

When executed, the trojan disables most well known third party file managers and Anti-Virus software. Singlejump.B tries to disable F-Secure Mobile Anti-Virus by replacing its files with non-functional versions.

It also installs Bluetooth-Worm:SymbOS/Cabir.G on the phone.

Singlejump.B disables the following applications

  • Simworks Anti-Virus
  • F-Secure Mobile Anti-Virus
  • Application installer
  • Cabirfix
  • Decabir
  • F-Cabir
  • FExplorer
  • File manager
  • Smart file manager
  • System Explorer