Backdoor:Win32/Lapka.A removal instruction

The Backdoor:Win32/Lapka.A 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/Lapka.A virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Dynamic (imported) function loading detected
• Performs HTTP requests potentially not found in PCAP.
• Enumerates running processes
• Expresses interest in specific running processes
• CAPE extracted potentially suspicious content
• Unconventionial language used in binary resources: Chinese (Simplified)
• Creates an autorun.inf file
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Deletes its original binary from disk
• Installs itself for autorun at Windows startup
• Installs itself for autorun at Windows startup
• Creates a hidden or system file
• Creates a copy of itself
• The sample wrote data to the system hosts file.
• Created a service that was not started
• Uses suspicious command line tools or Windows utilities

How to determine Backdoor:Win32/Lapka.A?

File Info:
name: AF893932F91E28A5193E.mlwpath: /opt/CAPEv2/storage/binaries/bd18bb55f196b1cd7900de56fc05dd25d0436c4e7ab340a5b317aec826f6a43ecrc32: FFE0A895md5: af893932f91e28a5193e53373fc35580sha1: 06c0683dafbc92d2c9717ea105fdb6a9ab5956f4sha256: bd18bb55f196b1cd7900de56fc05dd25d0436c4e7ab340a5b317aec826f6a43esha512: 002b358252c4ceefc519682ab7bd7f7cd2e54f2219fbb2ac21602a1cf9159a758e94454293385a44d817f62415f7b72736d12bd339f3aa8dda9b0fc6e0a3039assdeep: 384:jm8Q6Ft4D5OrYa4niZlraVoMl/lWDlno8y2MW52NxmlE6xaqdGmTdcHHRm:V7j4D5OrYa4ir9oJ2MW5Mk1qtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T15DF23B1ACA1570F2F4B05875046A6B37D13FA6253E59E683CF90CD64A872FE1FC19386sha3_384: 828ab5e43e5cacf056cf77649bf200781e14514ef342982c352c13541e58b253df559adcd5f43ae363c24b0b4a97ef8fep_bytes: 558bec6aff6820524000686042400064timestamp: 2008-11-01 03:08:57
Version Info:
0: [No Data]

Backdoor:Win32/Lapka.A also known as:

How to remove Backdoor:Win32/Lapka.A?

• 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.