Backdoor.Win32.Agent.ddao (file analysis)

The Backdoor.Win32.Agent.ddao 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 Backdoor.Win32.Agent.ddao virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Behavioural detection: Executable code extraction – unpacking
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Anomalous file deletion behavior detected (10+)
• Guard pages use detected – possible anti-debugging.
• Dynamic (imported) function loading detected
• Starts servers listening on 127.0.0.2:22
• 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
• Unconventionial language used in binary resources: Russian
• The binary contains an unknown PE section name indicative of packing
• Authenticode signature is invalid
• A scripting utility was executed
• Behavioural detection: Injection (inter-process)
• Installs itself for autorun at Windows startup
• A script process created a new process
• Operates on local firewall’s policies and settings
• Anomalous binary characteristics

How to determine Backdoor.Win32.Agent.ddao?

File Info:
name: C8260AB9D73119A02363.mlwpath: /opt/CAPEv2/storage/binaries/42373aace7ee14a602471e83159e8be3fbd518d4d949281ab0c2bd1a17763dcccrc32: B6DA7FFFmd5: c8260ab9d73119a023634d0436d71aeesha1: d23019dc8f21e6db319256e0dbe114e3b623343dsha256: 42373aace7ee14a602471e83159e8be3fbd518d4d949281ab0c2bd1a17763dccsha512: 748df08b8e01b3c7ef85889f3891e27b6d1a4d53412d13d7591800d8540a42e9fb4fc46376dea47c3506a0b935d36f9ed2a8a771996cf640ca46c4e67195c8a3ssdeep: 6144:4zG8nriOnW/rGgGp5AErxNN5Kt5f+yUgKrHNp3OikVBdvUikJrNoQkeHL4EM4fCC:s1DYrCT954TLUierNo5ertLbtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T19484F222B2808977C0101F789C07D6B4E936BB251F7C52C737DE6F5E4DE72861A1A2B6sha3_384: b1baae546096201b5adf3a7471354b9b06c50f12d20d0c46282463d1f34bb0e212a4b908240a4010ae56bdcabc960aa4ep_bytes: 558bec83c4f0b8187d4100e8f0aafefftimestamp: 1992-06-19 22:22:17
Version Info:
Comments: CompanyName: USE                                                         FileDescription: use 2.1.0.0 Installation                                    FileVersion: 2.1.0.0             LegalCopyright: USE                                                                                                 Translation: 0x0409 0x04e4

Backdoor.Win32.Agent.ddao also known as:

How to remove Backdoor.Win32.Agent.ddao?

• 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.