Trojan.Siggen8.53364

Technical Information

Malicious functions

Injects code into

the following user processes:

kleiopk.exe

Searches for registry branches where third party applications store passwords

[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook]
[<HKCU>\Software\Martin Prikryl\WinSCP 2\Sessions\]

Reads files which store third party applications passwords

%LOCALAPPDATA%\google\chrome\user data\default\cookies
%LOCALAPPDATA%\google\chrome\user data\default\web data

Modifies file system

Creates the following files

%APPDATA%\kleinugf\kleiopk.exe
%TEMP%\2fda\api-ms-win-crt-process-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-runtime-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-stdio-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-string-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-time-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-utility-l1-1-0.dll
%TEMP%\2fda\freebl3.dll
%TEMP%\2fda\mozglue.dll
%TEMP%\2fda\msvcp140.dll
%TEMP%\2fda\nss3.dll
%TEMP%\2fda\nssdbm3.dll
%TEMP%\2fda\softokn3.dll
%TEMP%\2fda\ucrtbase.dll
%TEMP%\2fda\vcruntime140.dll
%TEMP%\12830627208631391704082.tmp
%TEMP%\12830938667278618095667.tmp
%PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
%TEMP%\12849377055280598067637.tmp
%TEMP%\12849062897814443017249.tmp
%TEMP%\1284906844384362885525.tmp
%TEMP%\12849062942782310673531.tmp
%TEMP%\12848901166886975377470.tmp
%TEMP%\1284890708843653439871.tmp
%TEMP%\1284828107547804734404.tmp-shm
%TEMP%\12848751128756057228734.tmp
%TEMP%\1284828107547804734404.tmp
%TEMP%\12847501978524672902002.tmp
%TEMP%\12847344245186664566563.tmp
%LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
%PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
%PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
%TEMP%\12849532095120753608260.tmp
%TEMP%\2fda\api-ms-win-crt-private-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-multibyte-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-math-l1-1-0.dll
%APPDATA%\kleinugf\kleiopk.exe:zoneidentifier
%TEMP%\2fda\api-ms-win-core-console-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-datetime-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-debug-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-errorhandling-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-file-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-file-l1-2-0.dll
%TEMP%\2fda\api-ms-win-core-file-l2-1-0.dll
%TEMP%\2fda\api-ms-win-core-handle-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-heap-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-interlocked-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-libraryloader-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-localization-l1-2-0.dll
%TEMP%\2fda\api-ms-win-core-memory-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-namedpipe-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-processenvironment-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-processthreads-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-heap-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-filesystem-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-environment-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-convert-l1-1-0.dll
%TEMP%\2fda\api-ms-win-crt-conio-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-util-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-sysinfo-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-timezone-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-synch-l1-2-0.dll
%TEMP%\2fda\api-ms-win-core-synch-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-string-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-rtlsupport-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-profile-l1-1-0.dll
%TEMP%\2fda\api-ms-win-core-processthreads-l1-1-1.dll
%TEMP%\2fda\api-ms-win-crt-locale-l1-1-0.dll
%TEMP%\12849532095120753608260.tmp-shm