Ransom_LOCKY.DLDVEU

September 01, 2016

PLATFORM:

Windows

OVERALL RISK RATING:

DAMAGE POTENTIAL:

DISTRIBUTION POTENTIAL:

REPORTED INFECTION:

Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes

OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

TECHNICAL DETAILS

File Size:

320,000 bytes

File Type:

EXE

Memory Resident:

Initial Samples Received Date:

01 Sep 2016

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other System Modifications

This Trojan modifies the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.imaadpcm
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.imaadpcm
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.imaadpcm
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.imaadpcm
cFilterTags = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Multimedia\msacm.imaadpcm
MaxRTEncodeSetting = "6"

(Note: The default value data of the said registry entry is 6.)

HKEY_CURRENT_USER\Software\Microsoft\
Multimedia\msacm.imaadpcm
MaxRTDecodeSetting = "6"

(Note: The default value data of the said registry entry is 6.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msadpcm
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msadpcm
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msadpcm
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msadpcm
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg711
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg711
cFormatTags = "3"

(Note: The default value data of the said registry entry is 3.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg711
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg711
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msgsm610
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msgsm610
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msgsm610
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msgsm610
cFilterTags = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Multimedia\msacm.msgsm610
MaxRTEncodeSetting = "4"

(Note: The default value data of the said registry entry is 4.)

HKEY_CURRENT_USER\Software\Microsoft\
Multimedia\msacm.msgsm610
MaxRTDecodeSetting = "4"

(Note: The default value data of the said registry entry is 4.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.trspch
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.trspch
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.trspch
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.trspch
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg723
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg723
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg723
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msg723
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msaudio1
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msaudio1
cFormatTags = "3"

(Note: The default value data of the said registry entry is 3.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msaudio1
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.msaudio1
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.sl_anet
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.sl_anet
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.sl_anet
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.sl_anet
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.iac2
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.iac2
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.iac2
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.iac2
cFilterTags = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.l3acm
fdwSupport = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.l3acm
cFormatTags = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.l3acm
aFormatTagCache = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
AudioCompressionManager\DriverCache\msacm.l3acm
cFilterTags = "0"

This report is generated via an automated analysis system.

SOLUTION

Minimum Scan Engine:

9.8

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Restore these modified registry values

[ Learn More ]

Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.imaadpcm
- From: fdwSupport = "1"
  To: fdwSupport = ""1""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.imaadpcm
- From: cFormatTags = "2"
  To: cFormatTags = ""2""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.imaadpcm
- From: aFormatTagCache = "{random values}"
  To: aFormatTagCache = ""{random values}""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.imaadpcm
- cFilterTags = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Multimedia\msacm.imaadpcm
- From: MaxRTEncodeSetting = "6"
  To: MaxRTEncodeSetting = ""6""

In HKEY_CURRENT_USER\Software\Microsoft\Multimedia\msacm.imaadpcm
- From: MaxRTDecodeSetting = "6"
  To: MaxRTDecodeSetting = ""6""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msadpcm
- From: fdwSupport = "1"
  To: fdwSupport = ""1""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msadpcm
- From: cFormatTags = "2"
  To: cFormatTags = ""2""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msadpcm
- From: aFormatTagCache = "{random values}"
  To: aFormatTagCache = ""{random values}""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msadpcm
- cFilterTags = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg711
- From: fdwSupport = "1"
  To: fdwSupport = ""1""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg711
- From: cFormatTags = "3"
  To: cFormatTags = ""3""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg711
- From: aFormatTagCache = "{random values}"
  To: aFormatTagCache = ""{random values}""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg711
- cFilterTags = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msgsm610
- From: fdwSupport = "1"
  To: fdwSupport = ""1""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msgsm610
- From: cFormatTags = "2"
  To: cFormatTags = ""2""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msgsm610
- From: aFormatTagCache = "{random values}"
  To: aFormatTagCache = ""{random values}""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msgsm610
- cFilterTags = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Multimedia\msacm.msgsm610
- From: MaxRTEncodeSetting = "4"
  To: MaxRTEncodeSetting = ""4""

In HKEY_CURRENT_USER\Software\Microsoft\Multimedia\msacm.msgsm610
- From: MaxRTDecodeSetting = "4"
  To: MaxRTDecodeSetting = ""4""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.trspch
- From: fdwSupport = "1"
  To: fdwSupport = ""1""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.trspch
- From: cFormatTags = "2"
  To: cFormatTags = ""2""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.trspch
- From: aFormatTagCache = "{random values}"
  To: aFormatTagCache = ""{random values}""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.trspch
- cFilterTags = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg723
- From: fdwSupport = "1"
  To: fdwSupport = ""1""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg723
- From: cFormatTags = "2"
  To: cFormatTags = ""2""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg723
- From: aFormatTagCache = "{random values}"
  To: aFormatTagCache = ""{random values}""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msg723
- cFilterTags = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msaudio1
- From: fdwSupport = "1"
  To: fdwSupport = ""1""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msaudio1
- From: cFormatTags = "3"
  To: cFormatTags = ""3""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msaudio1
- From: aFormatTagCache = "{random values}"
  To: aFormatTagCache = ""{random values}""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.msaudio1
- cFilterTags = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.sl_anet
- From: fdwSupport = "1"
  To: fdwSupport = ""1""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.sl_anet
- From: cFormatTags = "2"
  To: cFormatTags = ""2""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.sl_anet
- From: aFormatTagCache = "{random values}"
  To: aFormatTagCache = ""{random values}""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.sl_anet
- cFilterTags = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.iac2
- From: fdwSupport = "1"
  To: fdwSupport = ""1""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.iac2
- From: cFormatTags = "2"
  To: cFormatTags = ""2""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.iac2
- From: aFormatTagCache = "{random values}"
  To: aFormatTagCache = ""{random values}""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.iac2
- cFilterTags = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.l3acm
- From: fdwSupport = "1"
  To: fdwSupport = ""1""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.l3acm
- From: cFormatTags = "2"
  To: cFormatTags = ""2""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.l3acm
- From: aFormatTagCache = "{random values}"
  To: aFormatTagCache = ""{random values}""

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AudioCompressionManager\DriverCache\msacm.l3acm
- cFilterTags = "0"

To restore registry values this malware/grayware modified:

Open Registry Editor. To do this:
- On Windows 2000, XP, and Server 2003:
  Click Start>Run, type REGEDIT in the text box provided, and then press Enter.
- On Windows Vista, 7, and Server 2008:
  Click the Start button, type REGEDIT in the Search input field then press Enter.
- On Windows 8, 8.1, and Server 2012:
  Right-click on the lower left corner of the screen and click Run, type REGEDIT in the Run input field, and then press Enter.
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>AudioCompressionManager>DriverCache>msacm.imaadpcm
In the right panel, locate the registry value:
fdwSupport = "1"
Right-click on the value name and choose Modify. Change the value data of this entry to:
fdwSupport = "1"
Again In the right panel, locate the registry value:
cFormatTags = "2"
Right-click on the value name and choose Modify. Change the value data of this entry to:
cFormatTags = "2"
Again In the right panel, locate the registry value:
aFormatTagCache = "{random values}"
Right-click on the value name and choose Modify. Change the value data of this entry to:
aFormatTagCache = "{random values}"
Again In the right panel, locate the registry value:
cFilterTags = "0"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Multimedia>msacm.imaadpcm
In the right panel, locate the registry value:
MaxRTEncodeSetting = "6"
Right-click on the value name and choose Modify. Change the value data of this entry to:
MaxRTEncodeSetting = "6"
Again In the right panel, locate the registry value:
MaxRTDecodeSetting = "6"
Right-click on the value name and choose Modify. Change the value data of this entry to:
MaxRTDecodeSetting = "6"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>AudioCompressionManager>DriverCache>msacm.msadpcm
In the right panel, locate the registry value:
fdwSupport = "1"
Right-click on the value name and choose Modify. Change the value data of this entry to:
fdwSupport = "1"
Again In the right panel, locate the registry value:
cFormatTags = "2"
Right-click on the value name and choose Modify. Change the value data of this entry to:
cFormatTags = "2"
Again In the right panel, locate the registry value:
aFormatTagCache = "{random values}"
Right-click on the value name and choose Modify. Change the value data of this entry to:
aFormatTagCache = "{random values}"
Again In the right panel, locate the registry value:
cFilterTags = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>AudioCompressionManager>DriverCache>msacm.msg711
In the right panel, locate the registry value:
fdwSupport = "1"
Right-click on the value name and choose Modify. Change the value data of this entry to:
fdwSupport = "1"
Again In the right panel, locate the registry value:
cFormatTags = "3"
Right-click on the value name and choose Modify. Change the value data of this entry to:
cFormatTags = "3"
Again In the right panel, locate the registry value:
aFormatTagCache = "{random values}"
Right-click on the value name and choose Modify. Change the value data of this entry to:
aFormatTagCache = "{random values}"
Again In the right panel, locate the registry value:
cFilterTags = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>AudioCompressionManager>DriverCache>msacm.msgsm610
In the right panel, locate the registry value:
fdwSupport = "1"
Right-click on the value name and choose Modify. Change the value data of this entry to:
fdwSupport = "1"
Again In the right panel, locate the registry value:
cFormatTags = "2"
Right-click on the value name and choose Modify. Change the value data of this entry to:
cFormatTags = "2"
Again In the right panel, locate the registry value:
aFormatTagCache = "{random values}"
Right-click on the value name and choose Modify. Change the value data of this entry to:
aFormatTagCache = "{random values}"
Again In the right panel, locate the registry value:
cFilterTags = "0"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Multimedia>msacm.msgsm610
In the right panel, locate the registry value:
MaxRTEncodeSetting = "4"
Right-click on the value name and choose Modify. Change the value data of this entry to:
MaxRTEncodeSetting = "4"
Again In the right panel, locate the registry value:
MaxRTDecodeSetting = "4"
Right-click on the value name and choose Modify. Change the value data of this entry to:
MaxRTDecodeSetting = "4"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>AudioCompressionManager>DriverCache>msacm.trspch
In the right panel, locate the registry value:
fdwSupport = "1"
Right-click on the value name and choose Modify. Change the value data of this entry to:
fdwSupport = "1"
Again In the right panel, locate the registry value:
cFormatTags = "2"
Right-click on the value name and choose Modify. Change the value data of this entry to:
cFormatTags = "2"
Again In the right panel, locate the registry value:
aFormatTagCache = "{random values}"
Right-click on the value name and choose Modify. Change the value data of this entry to:
aFormatTagCache = "{random values}"
Again In the right panel, locate the registry value:
cFilterTags = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>AudioCompressionManager>DriverCache>msacm.msg723
In the right panel, locate the registry value:
fdwSupport = "1"
Right-click on the value name and choose Modify. Change the value data of this entry to:
fdwSupport = "1"
Again In the right panel, locate the registry value:
cFormatTags = "2"
Right-click on the value name and choose Modify. Change the value data of this entry to:
cFormatTags = "2"
Again In the right panel, locate the registry value:
aFormatTagCache = "{random values}"
Right-click on the value name and choose Modify. Change the value data of this entry to:
aFormatTagCache = "{random values}"
Again In the right panel, locate the registry value:
cFilterTags = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>AudioCompressionManager>DriverCache>msacm.msaudio1
In the right panel, locate the registry value:
fdwSupport = "1"
Right-click on the value name and choose Modify. Change the value data of this entry to:
fdwSupport = "1"
Again In the right panel, locate the registry value:
cFormatTags = "3"
Right-click on the value name and choose Modify. Change the value data of this entry to:
cFormatTags = "3"
Again In the right panel, locate the registry value:
aFormatTagCache = "{random values}"
Right-click on the value name and choose Modify. Change the value data of this entry to:
aFormatTagCache = "{random values}"
Again In the right panel, locate the registry value:
cFilterTags = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>AudioCompressionManager>DriverCache>msacm.sl_anet
In the right panel, locate the registry value:
fdwSupport = "1"
Right-click on the value name and choose Modify. Change the value data of this entry to:
fdwSupport = "1"
Again In the right panel, locate the registry value:
cFormatTags = "2"
Right-click on the value name and choose Modify. Change the value data of this entry to:
cFormatTags = "2"
Again In the right panel, locate the registry value:
aFormatTagCache = "{random values}"
Right-click on the value name and choose Modify. Change the value data of this entry to:
aFormatTagCache = "{random values}"
Again In the right panel, locate the registry value:
cFilterTags = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>AudioCompressionManager>DriverCache>msacm.iac2
In the right panel, locate the registry value:
fdwSupport = "1"
Right-click on the value name and choose Modify. Change the value data of this entry to:
fdwSupport = "1"
Again In the right panel, locate the registry value:
cFormatTags = "2"
Right-click on the value name and choose Modify. Change the value data of this entry to:
cFormatTags = "2"
Again In the right panel, locate the registry value:
aFormatTagCache = "{random values}"
Right-click on the value name and choose Modify. Change the value data of this entry to:
aFormatTagCache = "{random values}"
Again In the right panel, locate the registry value:
cFilterTags = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>AudioCompressionManager>DriverCache>msacm.l3acm
In the right panel, locate the registry value:
fdwSupport = "1"
Right-click on the value name and choose Modify. Change the value data of this entry to:
fdwSupport = "1"
Again In the right panel, locate the registry value:
cFormatTags = "2"
Right-click on the value name and choose Modify. Change the value data of this entry to:
cFormatTags = "2"
Again In the right panel, locate the registry value:
aFormatTagCache = "{random values}"
Right-click on the value name and choose Modify. Change the value data of this entry to:
aFormatTagCache = "{random values}"
Again In the right panel, locate the registry value:
cFilterTags = "0"
Close Registry Editor.

Step 3

Scan your computer with your Trend Micro product to delete files detected as Ransom_LOCKY.DLDVEU. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.

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