Trojan-Dropper.Win32.Agent.tetzir (file analysis)

The Trojan-Dropper.Win32.Agent.tetzir 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 Trojan-Dropper.Win32.Agent.tetzir virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Behavioural detection: Executable code extraction – unpacking
• Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution
• Guard pages use detected – possible anti-debugging.
• Dynamic (imported) function loading detected
• Reads data out of its own binary image
• A process created a hidden window
• CAPE extracted potentially suspicious content
• Executed a very long command line or script command which may be indicative of chained commands or obfuscation
• The binary contains an unknown PE section name indicative of packing
• Authenticode signature is invalid
• A scripting utility was executed
• Uses Windows utilities for basic functionality
• Uses Windows utilities for basic functionality
• Detects VirtualBox using WNetGetProviderName trick
• Installs itself for autorun at Windows startup
• Creates a hidden or system file
• Detects Bochs through the presence of a registry key
• Checks the version of Bios, possibly for anti-virtualization
• Appears to use command line obfuscation
• A script or command line contains a long continuous string indicative of obfuscation
• Attempts to disable Windows Defender
• Attempts to execute suspicious powershell command arguments
• Uses suspicious command line tools or Windows utilities

How to determine Trojan-Dropper.Win32.Agent.tetzir?

File Info:
name: B0B460B98EE3EF304ED2.mlwpath: /opt/CAPEv2/storage/binaries/6266f647a3e7d118cb8bc019fac1e3f0e1f82b52b7df6b836691006e3f8fbd36crc32: 4410A342md5: b0b460b98ee3ef304ed2bd6ec89dacb8sha1: 5085a1d04d2d729aeddb7a80838fec619fe90d00sha256: 6266f647a3e7d118cb8bc019fac1e3f0e1f82b52b7df6b836691006e3f8fbd36sha512: 831c5b5233854df18adf3be86054f76977119947e71bf45a78b0e190201bcbf8c8a845fadb95fdfec3ef75e1e43403044a2c0e817bc6e741b39ecfd33054d38essdeep: 98304:91OJAbuh7QMlbTVVejGHHYNUsBrJUh6+QxPvGovnvlyM2e35nZXjcdXCTVPIwFwX:91Oqb60MlNVIGItlQQ1+oLDnZXYdXW0Xtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T13B5633B336E1ECBED08505319D392EC8C1A9EA524F260017A3D6D63CF56F9F49429B2Dsha3_384: 52d2fc67d5be5baf73c2f3113aa04b2ac290daa7a88902eb8aa1a98ce7f0b02732a53187dce595095c9c7fd2752ababcep_bytes: 558bec6aff68e0b94100682c4a410064timestamp: 2010-11-18 16:27:35
Version Info:
CompanyName: Igor PavlovFileDescription: 7z Setup SFXFileVersion: 9.20InternalName: 7zS.sfxLegalCopyright: Copyright (c) 1999-2010 Igor PavlovOriginalFilename: 7zS.sfx.exeProductName: 7-ZipProductVersion: 9.20Translation: 0x0409 0x04b0

Trojan-Dropper.Win32.Agent.tetzir also known as:

How to remove Trojan-Dropper.Win32.Agent.tetzir?

• 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.