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Threat Group Cards: A Threat Actor Encyclopedia

Tool: CWoolger

Names	CWoolger Woolger WoolenLogger
Category	Malware
Type	Keylogger
Description	(Trend Micro) Debug strings are strings that are sometimes left behind in binaries, revealing information about the developer behind the code. This debug string shows us that the binary was compiled by a user account named “Wool3n.H4t,” and that the project behind this code was dubbed “CWoolger.” This malware is a keylogger, although from a technical point of view, it is not as advanced as its contemporaries. The malware also embedded some File Transfer Protocol (FTP) credentials of the attackers in clear text in the binary.
Information	<https://www.trendmicro.com.ru/media/wp/operation-woolen-goldfish-whitepaper-en.pdf>
Malpedia	<https://malpedia.caad.fkie.fraunhofer.de/details/win.woolger>
AlienVault OTX	<https://otx.alienvault.com/browse/pulses?q=tag:CWoolger>

Last change to this tool card: 23 April 2020

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All groups using tool CWoolger

Changed	Name	Country	Observed
APT groups
	Magic Hound, APT 35, Cobalt Illusion, Charming Kitten		2012-Nov 2023

1 group listed (1 APT, 0 other, 0 unknown)

Digital Service Security Center
Electronic Transactions Development Agency

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