TROJ_HANCITOR.YV
Trojan.Win32.Yakes.izcc(Kaspersky); RDN/Generic Downloader.x!mq(McAfee); W32.Extrat(Symantec)
Windows
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
118,784 bytes
EXE
05 Feb 2015
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.
Installation
This Trojan adds the following folders:
- %Application Data%\Windows
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It drops the following copies of itself into the affected system:
- %Application Data%\Windows\winlogin.exe
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
winlogin = "%Application Data%\Windows\winlogin.exe"
HKCU\Software\Microsoft\
Active Setup\Installed Components\05F16C88-71D3-42C1-BB4F-E9BAF7DB4A9E
cfg = "{random characters}"
Other Details
This Trojan connects to the following possibly malicious URL:
- http://api.{BLOCKED}y.org
- http://{BLOCKED}wucosa5bu.tor2web.ru
- http://{BLOCKED}ucosa5bu.tor2web.org