General
- Target boykisser.exe
- Size 2.2MB
- Sample260727-ze2mrsdb98
- SHA256 3eae158b3abddc261e419c5929f38c22a85ce745f138f90835469802d443beca
- MD5 f443f1e58b433d08994be06e13d33b9a
- SHA1 5932d47a07d12734651ae9bd80b0f90b33ea79a7
- SHA512 6c1bd578c5f5d6a2f1bac6f11ceb27e496e5953ac3970492f35ca5fd80b931adf79238134d37110a3b56f0aa331a1f181a1782d7b6ec2c265c5a1e0b7cb93d95
- SSDEEP 24576:IpvUVClmRuBJY1tznaQlOiKtcC15WkBgfEW735Uvkz:Ipvrl0+JY1teQwPtceXBM2e
- TLSH T18AB5284F7EB15198D0F980B4D253F422AE67784B2719A9B673DC9320EB6190336C86FD
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
boykisser.exe
Resource
win10v2004-20260513-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
boykisser.exe
Resource
win11ltsc2024-20260709-en
10 signatures
150 seconds
Malware Config
Targets
-
- Target boykisser.exe
- Size 2.2MB
- SHA256 3eae158b3abddc261e419c5929f38c22a85ce745f138f90835469802d443beca
- MD5 f443f1e58b433d08994be06e13d33b9a
- SHA1 5932d47a07d12734651ae9bd80b0f90b33ea79a7
- SHA512 6c1bd578c5f5d6a2f1bac6f11ceb27e496e5953ac3970492f35ca5fd80b931adf79238134d37110a3b56f0aa331a1f181a1782d7b6ec2c265c5a1e0b7cb93d95
- SSDEEP 24576:IpvUVClmRuBJY1tznaQlOiKtcC15WkBgfEW735Uvkz:Ipvrl0+JY1teQwPtceXBM2e
- TLSH T18AB5284F7EB15198D0F980B4D253F422AE67784B2719A9B673DC9320EB6190336C86FD
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Modifies Windows Defender Real-time Protection settings
-
Disables Task Manager via registry modification
-
Stops running service(s)
-
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
-
Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v16
Persistence
Create or Modify System Process
4Windows Service
4Event Triggered Execution
1Netsh Helper DLL
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Create or Modify System Process
4Windows Service
4Event Triggered Execution
1Netsh Helper DLL
1