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.

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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.mlw
path: /opt/CAPEv2/storage/binaries/6266f647a3e7d118cb8bc019fac1e3f0e1f82b52b7df6b836691006e3f8fbd36
crc32: 4410A342
md5: b0b460b98ee3ef304ed2bd6ec89dacb8
sha1: 5085a1d04d2d729aeddb7a80838fec619fe90d00
sha256: 6266f647a3e7d118cb8bc019fac1e3f0e1f82b52b7df6b836691006e3f8fbd36
sha512: 831c5b5233854df18adf3be86054f76977119947e71bf45a78b0e190201bcbf8c8a845fadb95fdfec3ef75e1e43403044a2c0e817bc6e741b39ecfd33054d38e
ssdeep: 98304:91OJAbuh7QMlbTVVejGHHYNUsBrJUh6+QxPvGovnvlyM2e35nZXjcdXCTVPIwFwX:91Oqb60MlNVIGItlQQ1+oLDnZXYdXW0X
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T13B5633B336E1ECBED08505319D392EC8C1A9EA524F260017A3D6D63CF56F9F49429B2D
sha3_384: 52d2fc67d5be5baf73c2f3113aa04b2ac290daa7a88902eb8aa1a98ce7f0b02732a53187dce595095c9c7fd2752ababc
ep_bytes: 558bec6aff68e0b94100682c4a410064
timestamp: 2010-11-18 16:27:35

Version Info:
CompanyName: Igor Pavlov
FileDescription: 7z Setup SFX
FileVersion: 9.20
InternalName: 7zS.sfx
LegalCopyright: Copyright (c) 1999-2010 Igor Pavlov
OriginalFilename: 7zS.sfx.exe
ProductName: 7-Zip
ProductVersion: 9.20
Translation: 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.