About “Trojan-Downloader.Win32.Agent.hdrr” infection

The Trojan-Downloader.Win32.Agent.hdrr 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-Downloader.Win32.Agent.hdrr virus can do?

• Behavioural detection: Executable code extraction – unpacking
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Possible date expiration check, exits too soon after checking local time
• Dynamic (imported) function loading detected
• Performs HTTP requests potentially not found in PCAP.
• Reads data out of its own binary image
• A process created a hidden window
• CAPE extracted potentially suspicious content
• Drops a binary and executes it
• The binary contains an unknown PE section name indicative of packing
• Authenticode signature is invalid
• Attempts to repeatedly call a single API many times in order to delay analysis time
• Created a process from a suspicious location
• Attempts to modify proxy settings
• Anomalous binary characteristics

How to determine Trojan-Downloader.Win32.Agent.hdrr?

File Info:
name: 32899DAE1FB349BAC44E.mlw
path: /opt/CAPEv2/storage/binaries/883db90bbb73d97e326a0f60e48844d1f9530abf0d3b3ea4c39d9b6b6205dffc
crc32: 06CE378A
md5: 32899dae1fb349bac44e96b588b113cb
sha1: fa766d53fa7cc77dce6dd688fe029980ea0c6a6a
sha256: 883db90bbb73d97e326a0f60e48844d1f9530abf0d3b3ea4c39d9b6b6205dffc
sha512: 0a170848f325d52f25cc32b9c5e1eb9d2325774e48d44560d40ec231a69631e0e19d2522635a90445a339664195fedc5121eb57928ad97c6b4b6e4edbb5f60ea
ssdeep: 384:hrYOrYxRKZ2/Yvups786vEomagWUgETzEyFBpWz1d9qlWn6iq1cOpE3H4a:5XULQpuS786FmZTzLFBpWz1dIlWHj
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T15BB2D529F7E41934E2BB993FE0F346F3DCA2F6216482D89D41F3138608966F6AD75019
sha3_384: 47008477f397939951b4d7b00d9f41e9f05abdfad053eac79b511b03c334d951749066bda4bc2b58135d2ea72744ae31
ep_bytes: eba489c05589e5000000000000000000
timestamp: 2005-04-18 07:26:21

Version Info:
Comments: 
CompanyName: MSFT Corp
FileDescrsiption: calc.exe
FileVersion: 2.1.1.2
InternalName: calc.exe
LegalCopyright: Copyright (C) 2011
LegalTrademarks: 
OriginalFilename: calc.exe
PrivateBuild: 
ProductName: Calc
ProductVersion: 3.1.1.3
SpecialBuild: 
Translation: 0x0800 0x0025

Trojan-Downloader.Win32.Agent.hdrr also known as:

How to remove Trojan-Downloader.Win32.Agent.hdrr?

• 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.