What is “TrojanDropper:Win32/Sirefef.T”?

The TrojanDropper:Win32/Sirefef.T is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

What TrojanDropper:Win32/Sirefef.T virus can do?

• Behavioural detection: Executable code extraction – unpacking
• Sample contains Overlay data
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• The binary likely contains encrypted or compressed data.
• Removes Security and Maintenance icon from Start menu, Taskbar and notifications
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Behavioural detection: Injection (Process Hollowing)
• Behavioural detection: Injection (inter-process)
• Attempts to modify proxy settings
• Deletes executed files from disk
• Anomalous binary characteristics
• Attempts to modify user notification settings

How to determine TrojanDropper:Win32/Sirefef.T?

File Info:
name: CFF9B553E028DC283520.mlwpath: /opt/CAPEv2/storage/binaries/cc73d37055b8f67c86e4a8512762fc4f0ac6505d855e05996de6e1a42e9d77b4crc32: 13622EFCmd5: cff9b553e028dc28352006f27c196e56sha1: 0b91194c1c3dc71730d5bb078166c8a6748203b5sha256: cc73d37055b8f67c86e4a8512762fc4f0ac6505d855e05996de6e1a42e9d77b4sha512: 3554a4081ed8a6381846183ea68a7f3862511513205cd066ae4ebb63e020c11eb77d95472d87ca1f387fbb4ca764f367f68301553e165eb65fb2aca4ff77794cssdeep: 6144:Kfwzl1JD1NCrEbtYXb/AIc7Tg/V/zoJIGyxFq/Vl4J:OwLJDKrEebfDQ4Jtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1F674B055A950C422D4E8077808B65AB4F73CA99E8F514BCB2704F76D3EB33D5353AA8Csha3_384: 824f8088b12ea0d1877dcbdcbc0e15e20cfc743e09a0729d1c2bf7fc654f05dddfe27e71c0c23c0df27bf6f6ab07acf2ep_bytes: 6a586829953200e8250000008b0000fftimestamp: 2010-11-20 12:04:59
Version Info:
Comments: http://www.metaquotes.netCompanyName: MetaQuotes Software Corp.FileDescription: MetaTrader 4FileVersion: 4.0.0.402InternalName: MetaTrader 4LegalCopyright: © 2001-2011, MetaQuotes Software Corp.LegalTrademarks: MetaTrader®OriginalFilename: LiveU.exePrivateBuild: ProductName: MetaTrader 4 LiveProductVersion: 4.0.0.402SpecialBuild: Translation: 0x0000 0x04b0

TrojanDropper:Win32/Sirefef.T also known as:

How to remove TrojanDropper:Win32/Sirefef.T?

• Download and install GridinSoft Anti-Malware.
• Open GridinSoft Anti-Malware and perform a “Standard scan“.
• “Move to quarantine” all items.
• Open “Tools” tab – Press “Reset Browser Settings“.
• Select proper browser and options – Click “Reset”.
• Restart your computer.