Backdoor:Win32/Kirts removal tips

The Backdoor:Win32/Kirts 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 Backdoor:Win32/Kirts virus can do?

• Behavioural detection: Executable code extraction – unpacking
• Sample contains Overlay data
• Uses Windows utilities for basic functionality
• CAPE extracted potentially suspicious content
• Drops a binary and executes it
• Unconventionial language used in binary resources: Hungarian
• The binary likely contains encrypted or compressed data.
• Authenticode signature is invalid
• Uses Windows utilities to create a scheduled task
• Behavioural detection: Injection (Process Hollowing)
• Behavioural detection: Injection (inter-process)
• Operates on local firewall’s policies and settings
• Creates a copy of itself
• Deletes executed files from disk
• Attempts to disable Windows Defender
• Yara detections observed in process dumps, payloads or dropped files

How to determine Backdoor:Win32/Kirts?

File Info:
name: 450C8ADE9B7307125460.mlw
path: /opt/CAPEv2/storage/binaries/08dd19e42bd293f4267d4dd9b02ec25292d1b0fa642e02e472762aaf7567e044
crc32: 01F36580
md5: 450c8ade9b73071254603ae713d09e37
sha1: 3e4f880bcc6030f031aa5be293ecd49cc6b6ac0b
sha256: 08dd19e42bd293f4267d4dd9b02ec25292d1b0fa642e02e472762aaf7567e044
sha512: 801fe2ad5aadb8a569cd2e8a2aee5556484400ec63b810bd4617b1862222ec6d51a35e96efbe2f73bd073b8a49d72036dbf978ccdddc47e2356ef80903019f9f
ssdeep: 3072:ZLDwYSFDa/vslfqX9hYJiF9xBm2Ef5ayn8Tfd01LqciU+DGZq2CHv5p4HVP0dAhK:NDwYSFZ0hlbynMd01LHZq2xQAhRg
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T10134AE1530E1C031E117517967A3C7323A6AB4310B3A69CB6ACB857C4FAD6E9E723E4D
sha3_384: fd74fd78149bf930751e2b265ba7eb2306dd5ccf02d2ec4490db70738638f04b073b44f625941f89b976cd91d35234e4
ep_bytes: e8a14d0000e978feffffcccccccccccc
timestamp: 2010-08-19 02:12:54

Version Info:
0: [No Data]

Backdoor:Win32/Kirts also known as:

How to remove Backdoor:Win32/Kirts?

• 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.